#what is enthalpy of reaction?

[greenbookreclaim]

Feeling like a ∆S -ve ∆H +ve today.

Figure 8.23 summarises the effects of the signs of ∆H and ∆S on ∆G, and hence on the spontaneity of physical and chemical events.

"Chemistry" 2e - Blackman, A., Bottle, S., Schmid, S., Mocerino, M., Wille, U.

[rocksibblingsau]

Funk Branch: Hey, S-man! Can you do me a mad favor and look over my notes for me?

Synth: Oh sure, Dubstep! Just hand it over!

Funk Branch: Ok, so as you know, we have recently discovered anomalistic chemical kinetic behavior over at dimension RB08-v2tpt3 variety 208A [...] and the ongoing theory is that the root problem is the radiation spread of the entity V.R.C. C.D.: positive. [...] And so, to assist me on the confirmation of that theory, I will need you to help me find the number corresponding to the reaction rate constant on the Eyring equation, [...] so then we will be finally be able to run that over the error propagation formula for the enthalpy of activation and find the solution!

Synth: ......

Branch, mumbling: You're right, we may also need to do the error propagation formula for the entropy as well... But we can decide on that later!

Synth: Yeah, sure... But before that, can you remind me who Eyring is again?

Branch: Huh, what did you say?

Synth: Eyring, uhm, who is... she?

Branch: ...

Synth: ......

Branch: Synth, in all my years of interdimensional and intergalactical travel, you're by far the dumbest person I ever meet.

Synth: Hey!

Branch: *Pulls Synth in by the fins and kisses him on the mouth, with tongue*

Branch, holding Synth's face in his hands: Please, never change!

Funk Branch:

[solarpowerflwr]

solar power… why it’s actually really cool and you should care about it more🌞✨

ok so let me learn you a thing. we all know the sun, right? as humans, we are incredibly privileged to exist as we are in relation to the sun. as the largest body in our solar system, it gives us our wonderful water and climate cycle; light itself–which beyond being the reason we can perceive literally anything is also the reason we have plants #photosynthesis; extending beyond that, the sun is the reason we have any form of life (Planas, 2020). it’s pretty essential if i do say so myself, the fact its energy has empowered us for billions of years—and what if we could use this power for power.

as a source of energy, sunlight is incredibly immense. on average, the sun shines down 120 000 terawatts of power to the earth, which–by 2025–is 4000 times the needed amount to flow throughout the globe (Herron, 2010). however, this energy cannot be weaponized on its own. this is where solar panels come in.

these panels are composed primarily of solar cells, made from silicon #semiconductor, which captures sunlight to produce an electrical current; this process is known as the photovoltaic effect.

function of the effect:

solar cells have two layers, a negative “n-type” layer with extra electrons and a positive “p-type” layer with missing electrons or “holes.” The space where these layers are in contact, leading to the formation of an electric field, is known as a “p-n junction.” 

when sunlight hits the solar cell it transfers its energy to the electrons in the p-n junction, liberating them from their chemical bonds to conduct electricity. though, this transfer leaves behind holes, which can carry charge.

as a result of the aforementioned electric field these excited electrons and holes are induced to flow in opposite directions

this opposing flow creates an electric current 

wiring and other conductive metals in the panels collect and route this current for later use (Donev, 2024; Walker, 2024).  

another way to think of this process is that if it were a traditional chemical reaction, it would be akin to an endothermic reaction. The absorption of sunlight would necessitate a positive enthalpy gain!

though, despite the arduous set-up of this process to guarantee energy conversion, due to the nature of life, this conversion is not 100% efficient. despite common misconceptions about snow and darkness harming production, this simply isn’t the case. through storage facilities and angling of panels so snow slides off 😲–-many of these traditional problems have been circumvented (Office of Energy Efficiency & Renewable Energy, 2017).

it is instead numerous other factors limiting perfect function, such as being unable to account for all wavelengths of sunlight; the recombination of the electrical charge back to sunlight #reverse_reaction; higher temperatures messing with various properties of the panel; and sunlight simply being reflected back and not absorbing😞 (U.S. Department of Energy, n.d.). combined, this leads to an average conversion efficiency of 22% for modern solar panels. research is currently pushing this further with multi-junction and perovskite technologies (Elliott, 2024).

efficiency is not the be and end all of energy production, as “[a]n efficient solar panel is one that generates more electricity by occupying less space” (Enel X, n.d.). so, if the advantages of solar power outweigh the disadvantages of space requirements and initial costs for production, then this is virtually a non-issue.

the unique benefits of solar power make it a #game-changer🔥🔥 in energy production. its renewability, long-term cost-effectiveness, and low environmental impact show solar energy is worth investing in. solar power is more than just a sustainable energy source for underserved communities. once installed, solar panels offer free energy for decades; as long as the sun exists, so does solar power. with reliable electricity, clinics can store vaccines safely, surgeries aren’t conducted in darkness, and healthcare workers can serve remote areas more effectively. programs like UNDP’s Solar for Health have proven that solar energy doesn’t just save costs; it saves lives, empowering millions with access to essential services while lowering the health sector’s carbon footprint 👣🍃, unlike fossil fuels, solar power doesn’t emit greenhouse gases (Burton & Alers, 2019; Richardson, 2023).

circling back around to some of the negatives, as a #true comparison, while it is a bit challenging to get over the need for the significant land area as a result of the lower efficiency, innovative combined urban installations mitigate this through rooftop use (Khan & Anand, 2024). however, the other major placement for these solar farms is in the desert ecosystem. this may seem like a good use of space given the supposed bareness of these landscapes, yet in actuality, deserts are thriving fragile ecosystems, which the needed large solar installations harm (Courage, 2021). solar panels have been shown to have negative effects on wildlife, deterring common keystone species of the area from behaving and settling as they once were. this alteration in animal behaviour fundamentally changes how these ecosystems function; this change is for the worse (Chock et. al, 2020). the people living near these ecosystems are also harmed in the process as the heated climate produced from the unconverted solar energy would result in a reorganization of “global air and ocean circulation” leading to more frequent extreme weather occurrences and natural disasters in neighbouring countries, greatly impacting the health of their populations (Lu & Smith, 2021).

 the intentionality of placement matters, this does not necessarily limit the implementation of solar panels completely. instead, it promotes better land surveying and research investment to increase solar panel efficiency.

compared to a fossil fuel like coal, this needed support of solar power is minimal. coal emits on average approximately 1kg of CO₂ per kWh of energy produced, and for the amount that this CO₂ and other dangerous gases contribute to air pollution, acid rain, and respiratory diseases the efficiency for this combustion process is not that great 👎 (U.S. Energy Information Adminstration, 2023; Union of Concerned Scientists, 2017). coal plants convert 33% of energy from combustion; solar’s 22% might seem lower, but it’s infinitely cleaner and improving (Farris, 2012).

solar power isn’t just an energy source; it’s a movement toward a cleaner, healthier, and more sustainable planet. many countries are adapting its usage around the world, and it is at the forefront of the renewable energy wave (Ritchie et. al, 2024).

it reduces climate change impacts, preserving ecosystems and biodiversity; is going to be around as long as we are; and promotes personal interaction with the energy of our future. it's also really cool.

[kepler-438-b]

Saying things outside the tags for the first time in 800 years because while the diet industry is a scam and calorie-counting is an L some of the science stuff in this post is super misleading.

"There's no solid evidence that this method is at all equivalent to how our bodies process food."

Our bodies process food by breaking molecules down into smaller molecules and harvesting the energy. This is totally right that measuring food's nutritional value by how well it burns would be silly! But we don't do that.

You don't really burn "food" so to speak in a bomb calorimeter, you burn a chemical compound. By measuring the energy released by a bunch of combustion reactions, you can set up a standard of how much energy is produced in the formation of those compounds, and then compare to figure out how much energy is produced by the entirely different chemical processes OP mentions.

When you combust something in a bomb calorimeter, you measure the "heat of combustion," or enthalpy change, of the reaction. Enthalpy (H) is a function that combines the internal energy (U) of a material, which is all its kinetic and potential energy summed up, with pressure and volume (H = U + pV). This is why it's done in a "bomb;" the structure of the "bomb" maintains constant volume so that we can calculate the enthalpy change. At constant pressure, H = q, q is the heat flow of the reaction. So using OP's example of dry sawdust, 4800 calories of energy would be released when you combined dry sawdust with oxygen gas to make water and carbon dioxide gas.

This is almost exactly what OP described! But it doesn't actually stop there. In doing a bunch of those, we can calculate the Enthalpy of Formation of a bunch of compounds, which measures the energy change that happens when those compounds are formed from the most stable forms of all the elements in the compound (for example oxygen is most stable as O2 gas). When we have the enthalpy of formation for a bunch of compounds, we can then calculate from that the enthalpy change of any reaction involving those compounds! (If you're curious about this google Hess's Law). Because we burned all that stuff in the bomb calorimeter, we can calculate how much energy is released by pretty much any reaction, including those involved in digestion! So even though the bomb calorimetry combustion is totally different from the reactions involved in how we process food, we can use it to calculate how much energy is released by those reactions.

Even though the chemical reactions occur in a different environment, they still release the same amount of energy. For example, when you break down a protein in food, a different protein in your body catalyzes (speeds up) a reaction in which the food protein is split in two parts, and a water molecule (H2O) splits into H and OH to cap off the ends of those two protein segments. This is called hydrolysis (hydro = water, lysis = cutting). When this happens, wherever that protein is cut, whether in or out of your body, that reaction will release the same amount of energy, because the same chemical bond within that protein is cut. That chemical bond is an attraction between charges which has a certain amount of energy (this amount of energy can be calculated, it's determined by how charged the charges are, how far apart they are, and a number related to what environment theyre in). When that bond is cut, the energy of that bond is released, and you can calculate exactly how much energy is released. To calculate how much energy is released in this digestive reaction, you use the standard enthalpies of formation which we calculated from the bomb calorimetry. So bomb calorimetry does actually allow us to calculate how much energy is released by specific reactions in digestion.

2. "calories don't measure nutritional value, just how well something burns"/"'calorie' measures what happens when you set food on fire, rather than when it's digested"

Calories don't measure nutritional value or how well something burns, they measure energy. If you've ever heard of a Joule, a calorie is just 4.184 Joules, the same way a foot is 12 inches. You can use calories to measure pretty much any energy transformation. So you can use it to measure the energy released when something burns (different from how quickly it burns/how easy it is to make it burn), how much energy is released from bonds broken in molecules of food/how strong those bonds are, how much potential energy something high off the ground has, how much kinetic energy something has, how much work it takes to throw a book, or anything else involving energy or work. You can measure how many calories of energy a lightbulb burns per second. The fact that a calorie can measure all these things is not a design flaw, it's just a consequence of how physics works. Energy can move from one thing to another, it can do work, and it can make things happen. The energy of a chemical bond is the same energy that makes things move, runs your toaster, etc, and it can be calculated and measured. We use the Joule or calorie to measure all these energies not because of oversight, but because energy is the same thing in all those cases.

So returning to the sawdust example, if the combustion of sawdust has an enthalpy of 4800 calories per some amount of sawdust burned, does that mean science says eating that amount can provide you with 4800 calories of energy? No! The combustion of sawdust is a different chemical reaction. The calories you see on a label don't measure How Much Energy Does This Granola Bar Release When You Set It On Fire, it sums the energy released by all the various digestive reactions that occur on all the granola bar's chemical ingredients (ex. proteins, lipids/fats, sugars, etc).

The diet industry is absolutely a massive scam and enormously harmful, but if you're trying to convince someone of that or learn about it please use tumblr user queeranarchism's links and facts. While digestion is more complicated than just Putting Energy From Your Food's Chemical Bonds Into Your Body, the argument that the calorie is meaningless and just measures what happens when you blow stuff up, while powerful, snappy, and easy to memorize, isn't actually true.

Just found out that the dietary calorie is still measured by burning food in a "bomb calorimeter" and then measuring the heat produced. There's no solid evidence that this method is at all equivalent to how our bodies process food (an entirely different chemical process from combustion), the accuracy of this system has been disputed for as long as it's existed, and there are no available alternatives

There are 4800 calories in a kilogram of dry sawdust even though wood is completely indigestible to humans, because calories don't measure nutritional value, just how well something burns

Nutritional "science" is pure bullshit

[tutoroot]

What are the Basic Concepts of Chemical Thermodynamics? 

Ever wondered why a cold drink feels warm after a while? Or why does a hot cup of tea cool down? These phenomena are explained by thermodynamics, a branch of science that deals with heat and its relationship with work. In simpler terms, it’s like understanding the rules of energy exchange in the universe.  

Chemical thermodynamics focuses on the energy changes that occur during chemical reactions. Think of it as the accountant of the energy world, keeping track of how energy is spent and gained in chemical processes.  

Key concepts in chemical thermodynamics include:  

Internal energy: The total energy of a system. 

Enthalpy: The heat absorbed or released during a reaction at constant pressure.  

Entropy: A measure of disorder or randomness in a system. 

Gibbs free energy: A measure of the spontaneity of a reaction.  

Understanding the Basic Concepts of Chemical Thermodynamics  

Chemical thermodynamics is a branch of chemistry that deals with the relationship between heat and work in chemical reactions. To excel in this subject, especially for competitive exams like JEE, it’s crucial to grasp the fundamental concepts. Let’s break down some of the key terms:  

Internal Energy (U)  

Imagine a system like a container filled with tiny particles. These particles possess kinetic energy (due to their motion) and potential energy (due to their position). The internal energy is the total of all this kinetic and potential energy. It’s like the total wealth of a country, considering both cash and assets.  

Enthalpy (H): 

Enthalpy measures the heat absorbed or released during a reaction at constant pressure. Think of it as the “energy currency” of a reaction. If a reaction releases heat (exothermic), the enthalpy decreases. If it absorbs heat (endothermic), the enthalpy increases.  

Entropy (S): 

Entropy is a measure of the disorder or randomness in a system. It’s like the messiness of your room. The more scattered and disorganized the particles are, the higher the entropy. A tidy room has low entropy.  

Gibbs Free Energy (G): 

Gibbs free energy is a combination of enthalpy and entropy. It’s like a decision-maker for a reaction. If the Gibbs free energy is negative, the reaction is spontaneous and will occur on its own. If it’s positive, the reaction is non-spontaneous and requires external energy to proceed.  

Systems  

Earlier we have asked you to imagine about the “system” to have an easy understanding of the basic concepts of Thermodynamics.   

System, Surroundings, and State Functions of Thermodynamics: A Simplified Explanation  

Imagine a box filled with air. This box is our system. Everything outside the box, like the room, the people, and the weather, is the surroundings.  

Now, imagine you’re trying to understand the air inside the box. You’d want to know things like its temperature, pressure, and volume. These properties are called state functions. They only depend on the current state of the system, not on how it got there.  

Think of it like this: The state of a system is like a snapshot. It doesn’t matter how you got to that snapshot; what matters is what’s happening right now.  

Here’s a breakdown of state functions:  

Temperature: How hot or cold the air is.  

Pressure: How much force the air exerts on the walls of the box.  

Volume: How much space the air takes up.  

Every thermodynamic system in the universe can be classified into these three types:  

Open System  

Imagine you’re sipping a hot cup of tea. Have you noticed how steam escapes from the cup, and if you wait long enough, the tea cools down? This is a perfect example of an open system. In an open system, both energy (like heat) and matter (like water vapor) can move freely between the system (your tea) and the surroundings (the air around you). Just like how your body works: you eat food (matter), and your body uses it to generate energy. You also release heat and waste, constantly exchanging energy and matter with your environment.  

Closed System  

Now, think about a sealed water bottle. The water inside can’t escape because the cap prevents any matter from leaving or entering. But if you leave the bottle in the sun, the water inside will warm up. Here, only energy (heat) is being transferred through the bottle, while the water (matter) stays inside. That’s what a closed system is all about—only energy can move in or out, but it does not matter. The amount of matter remains the same, even if the temperature changes.  

Isolated System  

An isolated system is like a super-locked treasure chest that keeps everything inside, with no way for energy or matter to get in or out. Imagine a high-tech thermos that keeps your drink at the same temperature for hours. If it’s perfectly insulated, no heat escapes, and nothing gets in. That’s an isolated system. The best example? The universe itself! Nothing can come in or go out, and the total amount of energy stays constant.  

In some cases, a system can change its type. Take a car engine, for example. When fuel is injected into the engine, it’s an open system because matter (fuel) is entering. But once the fuel is inside, the engine acts as a closed system, with only energy being transferred as the engine runs.  

The Laws of Thermodynamics  

To understand thermodynamics, let’s explore its fundamental laws. There are four laws of thermodynamics, but the first three are the most relevant for our study:  

Zeroth Law of Thermodynamics: If two systems are each in thermal equilibrium with a third system, then they are in thermal equilibrium with each other. This law helps define the concept of temperature.  

First Law of Thermodynamics (Law of Energy Conservation): Energy cannot be created or destroyed, only transferred or converted from one form to another. This law explains that the total energy of an isolated system remains constant.  

Second Law of Thermodynamics: This law introduces the concept of entropy. In simple terms, entropy measures the disorder in a system. The second law states that in any energy transfer, the total entropy of a system and its surroundings will always increase over time.  

Third Law of Thermodynamics: As the temperature approaches absolute zero, the entropy of a system approaches a constant minimum. This law implies that it’s impossible to reach absolute zero.  

Thermodynamic Equilibrium  

An essential concept in chemical thermodynamics is Thermodynamic Equilibrium. A system is in equilibrium when its macroscopic properties, like pressure, temperature, and concentration, do not change over time. For a system to reach equilibrium, the forward and reverse reactions must occur at the same rate.  

For example, consider a closed bottle of soda. Initially, when you shake it, carbon dioxide gas escapes. After some time, the rate of gas escaping equals the rate at which it dissolves back into the liquid, achieving thermodynamic equilibrium.  

Applications of Chemical Thermodynamics  

Chemical thermodynamics has wide-ranging applications across various fields. Here are some examples:  

Chemical Engineering: Thermodynamics helps engineers design reactors where energy transformations take place.  

Biochemistry: Understanding how energy is used by cells in biochemical reactions is essential for advancing medical research.  

Environmental Science: Thermodynamic principles are applied in energy conservation, understanding climate change, and predicting environmental impacts.  

These applications demonstrate the importance of chemical thermodynamics in real-world scenarios.  

Limitations of Chemical Thermodynamics  

While chemical thermodynamics is powerful, it does have limitations. For instance:  

Cannot Predict Reaction Rates: Thermodynamics can tell you if a reaction is possible, but not how fast it will occur. That’s the job of kinetics.  

Only Applies to Bulk Properties: Thermodynamics deals with macroscopic properties and does not provide detailed information about molecular-level phenomena.  

Despite these limitations, the importance of chemical thermodynamics in science and engineering remains immense.  

Conclusion 

Chemical Thermodynamics is more than just a chapter in your textbook—it’s a key to unlocking how energy behaves in chemical reactions. By understanding the laws of thermodynamics, thermodynamic equilibrium, and the applications of chemical thermodynamics, you’ll gain a deeper insight into the processes that govern the natural world.  

So, as you prepare for either your exams or any competitive exams like JEE, remember that mastering chemical thermodynamics will not only help you ace your tests but also open doors to understanding some of the most fundamental concepts in science. Keep experimenting, keep learning, and let the laws of thermodynamics guide you!  

If you’re looking for more simplified explanations like the ones above, visit the Tutoroot Blog for a wealth of learning resources. Enhance your understanding with Tutoroot’s expert Chemistry online Tuition. Ready to excel in your studies? Schedule a FREE DEMO session with Tutoroot’s online home tuition and experience personalised learning tailored to your needs. 

[mitivy]

CAS NO.103-69-5 N-Ethylaniline Manufacturer test report

Quick Details Product name:N-Ethylaniline CAS:103-69-5 Molecular formula:C8H11N Molecular weight:121.18 EINECS No.:203-135-5 Purity:≥99% Brand:MIT -IVY INDUSTRY CO.,LTD Other names：Ethylaniline;N-Ethylbenzenamine;N-ethyl-Benzenamine；p-Ethylaminobenzene；N-monoethylaniline;Anilinoethane；Aniline,N-ethyl- (8CI);Anilinoethane;Ethylphenylamine;N-Ethyl-N-phenylamine;N-Ethylaminobenzene;N-Ethylbenzenamine;NSC 8736; Packing: 250 kg drum Delivery: by air,by sea,by courier Storage:Stored in a cool dry place out of direct sunlight. Appearance:yellow liquid Port: any port in china Density:0.963 g/cm3 PSA:12.03000 LogP:2.19140 Solubility Water: 50 g/L (20 °C) Melting Point:- 63 °C Boiling Point:201.7 °C at 760 mmHg Molecular Weight:121.182 Flash Point:85 °C Safety:28-37-45-28A Risk Code:23/24/25-33 Packing:according to the clients requirement Storage: Store in dry, dark and ventilated place. Transportation: by sea or by air payment methods: L/C, T/T, D/A, D/P, O/A, paypal, western union etc.accept all payment.

CERTIFICATE OF ANALYSIS Product:N-乙基苯胺-N-Ethylaniline CAS:103-69-5 Inspect Date:2022.09.02 Production Date:2022.09.02 Molecular Formula:C8H11NMolecular Weight:121.18 Quantity：25T Batch No.:MITSC22090517 Shelf life:Five years 检测项目 Test Item And Results Item Specification Result Appearance Colorless liquid Colorless liquid N-Ethylaniline  %≥ 99.15 99.27 Benzene amine  %≤ 0.4 0.2 N,N-Diethylaniline  %≤ 0.4 0.38 moisture capacity %≤ 0.005 0.004 Conclusion Qualified N-Ethylaniline Specification The N-Ethylaniline with CAS registry number of 103-69-5 is also known as Benzenamine,N-ethyl-. The IUPAC name and product name are the same. It belongs to product categories of Intermediates of Dyes and Pigments. Its EINECS registry number is 203-135-5. In addition, the formula is C8H11N and the molecular weight is 121.18. This chemical is a yellow liquid that miscible with alcohol, ether. It at low levels causes damage to health and should be sealed in ventilated, cool place away from fire, heat without light. What's more, this chemical can be used as pesticide and dye intermediates, rubber promoting agent and also used in organic synthesis. Physical properties about N-Ethylaniline are: (1)ACD/LogP: 2.13; (2)ACD/LogD (pH 5.5): 1.98; (3)ACD/LogD (pH 7.4): 2.12; (4)ACD/BCF (pH 5.5): 17.2; (5)ACD/BCF (pH 7.4): 24.21; (6)ACD/KOC (pH 5.5): 241.62; (7)ACD/KOC (pH 7.4): 340.12; (8)#H bond acceptors: 1; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 2; (11)Index of Refraction: 1.559; (12)Molar Refractivity: 40.49 cm3; (13)Molar Volume: 125.3 cm3; (14)Surface Tension: 35.4 dyne/cm; (15)Density: 0.966 g/cm3; (16)Flash Point: 85 °C; (17)Enthalpy of Vaporization: 43.79 kJ/mol; (18)Boiling Point: 201.7 °C at 760 mmHg; (19)Vapour Pressure: 0.304 mmHg at 25 °C. Preparation of N-Ethylaniline: it is prepared by reaction of aniline, ethanol, and phosphorus trichloride. The reaction occurs at the temperature of 300 °C with the reaction pressure of 9.84 MPa. Product is obtained by vacuum distillation. Uses of N-Ethylaniline: it is used to produce N-ethyl-N-benzyl-aniline by reaction with benzoic acid. The reaction occurs with reagent trimethylamine-borane and solvent xylene with other condition of heating for 7 hours. The yield is about 99%. When you are using this chemical, please be cautious about it. As a chemical, it is toxic by inhalation, in contact with skin and if swallowed. Besides, it has danger of cumulative effects. During using it, wear suitable gloves. After contact with skin, wash immediately. In case of accident or if you feel unwell seek medical advice immediately. You can still convert the following datas into molecular structure: 1. Canonical SMILES: CCNC1=CC=CC=C1 2. InChI: InChI=1S/C8H11N/c1-2-9-8-6-4-3-5-7-8/h3-7,9H,2H2,1H3 3. InChIKey: OJGMBLNIHDZDGS-UHFFFAOYSA- The toxicity data is as follows: Organism Test Type Route Reported Dose (Normalized Dose) Effect Source mammal (species unspecified) LD50 unreported 600mg/kg (600mg/kg) Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 48(6), Pg. 22, 1983. mouse LD50 intraperitoneal 242mg/kg (242mg/kg) Yakugaku Zasshi. Journal of Pharmacy. Vol. 97, Pg. 1117, 1977. rat LC50 inhalation > 1130mg/m3/4H (1130mg/m3) United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. Vol. 8EHQ-0282-0429, rat LD50 intraperitoneal 180mg/kg (180mg/kg) Archiv fuer Gewerbepathologie und Gewerbehygiene. Vol. 15, Pg. 447, 1957. rat LD50 skin 4700mg/kg (4700mg/kg) Archiv fuer Gewerbepathologie und Gewerbehygiene. Vol. 15, Pg. 447, 1957. Application 1.This product is used in organic synthesis and is an important intermediate of azo dyes and triphenylmethane dyes. 2.It can also be used as an intermediate of fine chemicals such as rubber additives, explosives and photographic materials. N-Ethylaniline Consensus Reports Reported in EPA TSCA Inventory.   Superiority 1.High quality with competitive price: We are manufacturer and can provide high quality products with factory price. 2.Fast and safe delivery ① Parcels can be sent out within 48 hours after payment. Tracking number is available. ②Secure and discreet shipment. You have various choices of transportation methods. 3.We have clients throughout the world. ① Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet your desire. ②Market feedback and goods feedback are appreciated, meeting customers's requirement is our responsibility. ③High quality, competitive Company Information MIT-IVY INDUSTRY CO.,LTD is a manufacturer and exporter of fine chemical dyes & pharmaceutical intermediates in China. Mainly produce aniline series products and chlorine series products.   MIT -IVY Industry use advance d production technology and test methods to realize production, quality controlling to meet the standard. We have been approved by REACH CETIFICATION ,SGS, ISO9001, ISO140 01, GB/HS16949 and T28001. Technology is the first productive force. It uses science and technology to create a brand, constantly adapts and meets the diverse needs of the market and customers, in order to realize the highest value of the company. MIT -IVY Industry hold “Integrity as root, technology s foundation,quality superiority,and top service”to produce our goods in International standard,our main technology index all meet International standard. We always believe that technology is the first productive force to creat “first class “brand to make out company among the top in this line. So we also set up its own laboratory, hired excellent scientific and technical management personnel, give priority to the development of science and technology, and strive to be the best in the industry. The company has a group of energetic, well-trained employees and strong technical research and development capabilities. We specialize in the production, development and sales of API intermediates, fine chemicals and plant extracts. Relying on advanced equipment and strict management, adhere to the business philosophy of "openness, tolerance, innovation, and sharing" to create a win-win cooperationplatform.Everything comes from innovation, it is our philosophy ! If you are interested in getting more quotations, please add WHATSAPP:0086-17363307174 or E-MAIL:kevin@mit-ivy.com Main products MIT-IVYINDUSTRYCO.,LTDMit-Ivy is a well-known fine chemicals and pharmaceutical intermediates manufacturer with strong R&D support in China. Mainly involved Aniline, Chlorine products. Payment：DA 60 DAYSTEL:008617363307174    E-MAIL:kevin@mit-ivy.com    http://www.mit-ivy.com 产品 Product CAS N,N-二甲基-1,4-苯二胺 N,N-Dimethyl-1,4-phenylenediamine DMPD 99-98-9 N,N-二甲基苄胺 N,N-Dimethylbenzylamine  BDMA 103-83-3 N,N-二甲基甲酰胺   N,N-Dimethylformamide  DMF .68-12-2 N,N-二甲基甲酰胺二甲缩醛 DMF-DMA N,N-Dimethylformamidedimethyl acetal  (DMF-DMA) 4637-24-5 N,N-二甲基乙酰胺 N,N-Dimethylacetamide   DMAC 127-19-5 N,N-二乙基间甲苯甲酰胺 避蚊胺 N,N-diethyl-m-toluamide    DEET 134-62-3 N,N-二乙基羟胺 N,N-Diethylhydroxylamine  DEHA 3710-84-7 N-甲基-N-羟乙基苯胺 2-(N-甲基苯胺)乙醇 2-(N-methylanilino)ethanol 93-90-3 N-甲基吡咯烷酮 N-methylpyrrolidone 872-50-4 N,N-二甲基苯胺 N,N-Dimethylaniline   DMA 121-69-7 N,N-二甲基对甲苯胺 N,N-Dimethyl-p-toluidine  DMPT 99-97-8 N,N-二甲基邻甲苯胺 N,N-Dimethyl-o-toluidine   DMOT 609-72-3 N,N-二乙基苯胺 N,N-Diethylaniline 91-66-7 N,N-二乙基间甲苯胺 N,N-Diethyl-m-toluidine 91-67-8 N,N-二羟乙基苯胺 N,N-Dihydroxyethylaniline   PDEA 120-07-0 N-乙基间甲苯胺 N-乙基-3-甲基苯胺 N-Ethyl-m-toluidine/N-Ethyl-3-methylaniline 102-27-2 N-乙基-N-氰乙基苯胺 3-(N-ethylanilino)propiononitrile 148-87-8 N-乙基-N-羟乙基苯胺 N-Ethyl-N-hydroxyethylaniline 92-50-2 N-乙基-N-苄基苯胺 乙基苄基苯胺; N-苄基-N-乙基苯胺 N-ethyl-N-phenylbenzenemethanamine 92-59-1 N-乙基-N-氰乙基间甲苯胺 N-2-cyanoethyl-N-ethyl-m-toluidine 148-69-6 N-乙基-N-苄基间甲苯胺 N-Benzyl-N-ethyl-m-toluidine 119-94-8 N-乙基邻甲苯胺 N-Ethyl-o-toluidine/2-Ethylaminotoluene 94-68-8 N-乙基苯胺 N-Ethylaniline 103-69-5 N-甲基苯胺 N-Methylaniline 100-61-8 N,N-二甲基-间甲基苯胺 N,N-DIMETHYL-M-TOLUIDINE 121-72-2 N-甲基二苯胺 N-Methyldiphenylamine 552-82-9 N-甲基-邻甲基苯胺 N-METHYL-O-TOLUIDINE 611-21-2 N-甲基-对甲基苯胺 N-METHYL-P-TOLUIDINE 623-08-5 4-甲基-N-苯基苯胺 N-PHENYL-P-TOLUIDINE 620-84-8 N-异丙基苯胺 N-ISOPROPYLANILINE 768-52-5 N,N-二氰乙基苯胺 N,N-Dicyanoethylaniline 1555-66-4 N,N-二羟乙基-对甲基苯胺 N,N-DIHYDROXYETHYL-P-TOLUIDINEDHEPT .3077-12-1 N-乙基-2-硝基苯胺 N-Ethyl-2-Nitro-Benzenamine 10112-15-9 2,4-二氯苯胺 2,4Dichloroaniline 554-00-7 N-(2-羟乙基)乙二胺 AEEA 111-41-1 1,3-二甲基-2-咪唑啉酮N,N-二甲基亚乙基脲1,3-二甲基-2-咪唑啉酮（DMI) 1,3-Dimethyl-2-imidazolidinone  DMI N,N'-dimethylimidazolidinone 80-73-9 N,N-二苄基羟胺 N,N-Dibenzylhydroxylamine 621-07-8 对甲苯胺 P-Toluidine  PT 106-49-0 邻甲苯胺 O-Toluidine  OT 95-53-4 二乙基乙醇胺 DEEA;DEAE 100-37-8 甲萘胺 AlphaNaphthylamine 134-32-7 间二氯苯 1,3-Dichlorobenzene   MDCB 541-73-1 间甲苯胺 M-Toluidine  MT 108-44-1 间苯二胺 M-PHENYLENEDIAMINE  MPDA 108-45-2 多乙烯多胺 PEPA 68131-73-7 二乙烯三胺(DETA) Diethylenetriamine  DETA 111-40-0 三乙烯二胺 Triethylenediamine 280-57-9 三乙烯四胺 TriethylenetetramineTETA 112-24-3 四乙烯五胺 TEPA 112-57-2 Read the full article

[greatwyrmgold]

This bugs me, because while everything explicitly stated is true (as far as I recall), it also implies something that's not true. It implies that the sun shone brightly in its early years because hydrogen fusion produces so much more energy than fusing other elements, and that's completely backwards. The sun shines brighter now, because hydrogen fusion produces so much more energy than fusing other elements.

Before I get into the explanation, keep in mind that I have a biology degree, not physics. If this topic interests you, use the keywords I tell you to find someone who knows what they're talking about.

Stars are big. Really big. You may think it's a long way down the road to the chemist, but that's just peanuts to space. (Or maybe walnuts? Stars are pretty small compared to space as a whole.) Their mind-boggling size means they have a lot of gravity; by classical physics, that gravity should smush the star to a fraction of its size. But classical physics doesn't account for fusion.

As protostars smush themselves to star size, their temperature and pressure increase (as predicted by the ideal gas law). This creates conditions under which hydrogen can fuse—hydrogen specifically, because it's (relatively) easy to fuse, because hydrogen fusion has a higher enthalpy of reaction* than other fusion, because hydrogen fusion produces more energy than fusing other elements.

This fusion makes the star even hotter, which counterbalances the pressure of gravity. The size of a star is, loosely speaking, determined by the balance between its gravity and the energy it produces by fusion. Gravity doesn't change much, so the key here is energy. If the star produces more energy, it expands until fusion rates fall to meet gravity; if it produces less, it contracts until fusion rates rise to meet it.

As hydrogen runs low, hydrogen fusion rates fall and the star contracts. It needs to contract, because other types of fusion require greater pressures and temperatures than hydrogen, because they release less energy. The star contracts until those conditions are met, balancing the gravitational force trying to make it contract farther. And the increased temperature means it shines brighter.

Now, this isn't a big toggle switch; it happens slowly throughout the star's life. As hydrogen fuses into helium, the amount of hydrogen in a star decreases (slowly), making hydrogen fusion a little harder. So the star needs to get a bit hotter to balance out gravity, which makes it shine a little brighter. As hydrogen dwindles, helium accumulates, and the temperature and pressure grow high enough that an occasional bit of helium fusion supplements the hydrogen fusion. And so on, until you reach heavy enough elements that this starts to break down.

The red giant phase that larger main-sequence stars like our sun go through is another matter entirely. I'd explain, but I'd need to do more research to refresh myself, and I've already done enough research for one Tumblr post.

*Enthalpy of reaction is a chemistry thing, but I assume the same general concept applies to nuclear physics. The more energy a reaction releases, the more easily it happens.

@chaos-insurgency-official i am having a surprisingly insightful conversation with the sun

[llamaalpacca]

*cries over chemistry*

[tired-momfriend]

Omg I have 2 finals today I am going to DIE

[anonymouse-thoughts]

@starlit-winter @luluthorn I’ve been thinking about all the potential unexplored lore of kwamis in ML and since since the world is shit right now I made a small thing while trying to avoid real life. I figured y’all may enjoy diving back into headcanons if life is rough on your end as well. If I end up writing more little blurbs, you’ll get to meet the narrator of this little history. I think you’d like him though. He’s a real hoot and he loves jelly beans~ 

[In the beginning...] [Those three were the first...]

-----------------

     If these words confuse you, be kind and grant some allowances as explaining things that existed before existence itself is a difficult matter. They’re meant to recount events in the way you will be most likely to understand, but even so you will need to listen closely and with an open mind. Your language limits the depth of this narrative and many parts are simply beyond what you or any human, regardless of how educated they are on such topics, could possibly hope to comprehend. Therefore, you must accept what you hear and trust that the things that seem contrary to what you have previously believed are as they are told. Interpret any inconsistencies as due either to your own limitations as a being of only four dimensions, or to explanations that are too detailed and off-topic to bother with at this time. If you feel something crucial has been left out, you may ask. And if an adequate response is possible and appropriate, you will be answered. But hold your tongue, at least until the end, and try to trust my judgment about what it is you should hear. These are my words, after all. With that being said, let us begin at the Beginning.

~

     In the Beginning there was Nothing. This Nothing was not the black void humans typically envision, however. Instead, it was a bright, luminous Nothing. It was empty of any substance, but it was filled with raw energy. The white expanse was simultaneously everywhere and nowhere as space had not yet formed – or at the very least not in a manner that could be defined. Similarly, time existed in a paradoxical state of both being and not being. For either of these to exist in full, there needed to be something that served as a reference point. Something that relative distance could be measured against, that could anchor time and thus allow it progress. And, eventually, that something came to be. From the vast energy came a speck. This speck was energy that had slowed and condensed. This speck was mass. This speck was matter. This speck was everything. This speck was Everything. 

     The Nothing and the Everything existed and evolved. They were separate from one another, yet they grew closer and closer still. The Everything was dense and dark, emitting no light but rather taking it all in from the Nothing. The Nothing enveloped the Everything, gravitating towards it and feeding into it as it orbited around the speck. The Everything and Nothing became intertwined, giving part of themselves to the other. From these interactions arose two beings. One was a consciousness of the Nothing imbued with the three foundational properties of the Everything: space, mass, and time. This consciousness came to be known as Null. The other, an avatar of the speck that had been the Everything, now held the attributes that made up the Nothing. These are harder to describe as they are attributes of the immaterial – abstract tendencies for how energy behaves and influences matter. Two can be referred to as enthalpy and entropy. These terms are not exact but they come close enough. Simplified, the former is the tendency for matter to seek out its lowest energy state. The latter is the tendency for matter to exist in the state which gives it the greatest possibilities – the most chaos. The third is an amalgamation of the other two; it’s the reaction process itself and the matter’s state of being. Again, it’s difficult to describe. This second consciousness did not receive a name as it was not around for the rise of names. Over time, it’s been called Essence, All, Full, and Higgs; it’s been given titles such as The First and The Nameless One… But none of these were its true name. Its true name faded along with its consciousness during the Great Spark. 

     The Great Spark. That too lacks a proper name. It was an event – the event. It was the true start of the universe, its birth per se. Everything before that was merely its conception. 

     Null and All – for simplicity’s sake, The Nameless One shall be referred to as All – were aware. They were aware of themselves and of each other. Null still orbited All, being content with simply basking in the other’s presence. But All sought for there to be more. All was everything that was left from the initial Everything, but it was so… small. Every universe that now exists was contained within it. And, although Null was content to hover just out of reach, All desperately wished for real contact with its match. The two knew things would change if that happened though. Through some instinctual premonition, they could tell that the moment they were truly united they would never be together again. Null feared this and thus kept a distance, but All beckoned until the former gave in. Each consciousness learned the nature of the other, found the pieces of itself the other had held, gave itself to the other. The moment they touched had been both infinite and instantaneous. A great surge of energy rippled outwards as all matter was freed. And then the consciousness of All was gone. 

     Fragments of All’s consciousness were scattered through all that now existed, spanning through various dimensions and connecting the universe. In All’s place, three distinct beings were left. These were the parts of Null that had been held by All and which were now, once again, in the former’s domain. Null cared for these three and kept them safe. In Null’s presence, they grew until they too became aware. These were beings of energy and light, but they could manipulate matter and pass through different dimensional planes. They were the manifestations of the abstract tendencies that had been released by All. The first to awaken was the avatar of Creation, the one who embodied the very existence of matter. The other two gained awareness at roughly the same time, but in very different ways. Having remained in passive stasis, the avatar of Destruction had grown larger than Creation. On the other hand, the avatar of Chaos had phased through all its possible forms during its incubation and thus emerged smaller and more loosely bound than the others. 

     These were the first kwamis. And like all things perfect, they came in three.

[fyeahchenfics]

Fic Search #15

1. Alpha Overdose 

Hi! I am looking for a fanfic where the setting is in a university. Baekhyun and Chen are best friends and Jongin and Sehun are best friends. Sehun does not talk a lot but soon he and Chen become boyfriends and same for Baekhyun and Kai.

2. 

Hello! I'm looking for this baekchen(?) fic where all M members are protective of Jongdae. I've read two of those and I remeber one part was Jongdae wasn't feeling better so he gave his food to Baekhyun and he went to bed. BUT really any fic with exo-m being protective to dae is appreciated! Thanks a lot! (｡’▽’｡)♡

3. Mine in B.E.long drabbles 

Do you know that a/b/o chensoo fic with female alpha Kyungsoo and male omega Jongdae? I think Kyungsoo saves Jongdae and it’s also a mafia au or something?

4. 

theres a fanfic which tao is a hybrid but from wild (something like leopard or tiger or lion I don't remember ) and jongdae is also a hybrid , I don't really remember what is happening but I remember its smut and jongdae is a bottom

5. positive entropy, negative enthalpy (spontaneous reaction) 

hello, i'm looking for a particular sehun x jongdae fic, which is told mainly from sehun's point of view and then there's this particular scene where sehun is moping about jongdae while listening to Iris by The Goo Goo Dolls on repeat on his spotify? that's how Jongin (sehun's bestfriend) find out that sehun is sad. I'm so sorry if my weird description is way too vogue and lacking. Thank you!!!🌹 

6. 

I’ve been searching for this one specific female jongdae fic where she’s dating Sehun and Sehun tells Jongdae that he’s older now so she should stop calling him “Sehunnie”. I love this vlog, thank you for your hard work 💞

thanks to the lovely anons who’ve helped us with this search so far! <3

Hey there! I’m having trouble finding these fics so if anyone knows the answer, please help me out and let me know!

Also, I want to apologize for not being very active these last few months but my life has been a mess. I was abroad for a year then came back for like two weeks just to go abroad again for an internship *sigh* I’ll be more active from now on, I’ve already put quite a few asks in the queue and almost cleared the inbox :) I currently have a part-time job and I study on the side so I can’t assure you that I’ll always be super active but I’ll do my best! thanks for your support, understanding and patience <3 

- admin ana

[tutoroot]

What are Endothermic Reactions Exothermic Reactions? 

In chemistry, reactions can either absorb or release energy. Understanding the difference between endothermic and exothermic reactions is crucial for grasping how energy changes affect chemical processes. These reactions are fundamental concepts in thermodynamics, playing a key role in various natural and industrial processes. This article will explore the definitions, examples, and differences between endothermic and exothermic reactions, making it clear and understandable for students.  

What are Endothermic Reactions?  

Definition and Explanation  

Endothermic reactions are chemical reactions that absorb energy from their surroundings in heat. The term “endothermic” is derived from the Greek words “endo,” meaning inside, and “therme,” meaning heat. In an endothermic reaction, the energy needed to break the bonds of the reactants exceeds the energy released when new bonds are formed in the products. As a result, there is a net intake of energy, causing the surrounding environment to cool down.  

These reactions are characterized by a positive enthalpy change (ΔH > 0), indicating that the energy of the products is higher than that of the reactants. Endothermic reactions are essential in various natural processes, such as photosynthesis in plants, where sunlight is absorbed to convert carbon dioxide and water into glucose and oxygen.  

In a laboratory setting, endothermic reactions often require continuous heating to proceed, as they rely on an external energy source to overcome the activation energy barrier. These reactions are not spontaneous and require careful control of temperature and energy input. 

What are Exothermic Reactions?  

Definition and Explanation  

Exothermic reactions are chemical reactions that release energy into their surroundings, typically in the form of heat. The word “exothermic” originates from the Greek words “exo,” meaning “outside,” and “therme,” meaning “heat.” In an exothermic reaction, the energy released during the formation of bonds in the products is greater than the energy required to break the bonds in the reactants. This results in a net release of energy, causing the surrounding environment to heat up.  

Exothermic reactions have a negative enthalpy change (ΔH < 0), indicating that the energy of the products is lower than that of the reactants. These reactions are often spontaneous and can occur rapidly, sometimes producing light, heat, or sound as by-products.  

Exothermic reactions are common in everyday life and are essential in various industrial processes, such as combustion in engines and the setting of concrete. They play a vital role in biological systems as well, including cellular respiration, where glucose is broken down to release energy for cellular activities. 

Difference Between Endothermic Reactions and Exothermic Reactions  

Endothermic and exothermic reactions differ primarily in how they handle energy. Endothermic reactions draw energy from their surroundings, causing a reduction in the temperature near the reaction site. In contrast, exothermic reactions release energy, causing an increase in the surrounding temperature. These reactions can be identified by measuring the temperature change or by examining the enthalpy change (ΔH) associated with the reaction.  

Understanding these differences is crucial in predicting how a reaction will behave under different conditions. For example, in industrial applications, controlling the temperature of an exothermic reaction is essential to prevent overheating, while ensuring a constant energy supply is vital for maintaining an endothermic reaction. 

Understanding the difference between endothermic and exothermic reactions is fundamental to grasping how chemical processes interact with energy. These reactions are not just theoretical concepts but are integral to everyday life and industrial processes. By recognizing whether a reaction absorbs or releases energy, scientists and engineers can control and optimize these reactions for various applications.  

If you’re looking to deepen your understanding of subjects just like this one, the Tutoroot Blog offers more simplified and insightful explanations. For a personalised learning experience, consider exploring Tutoroot’s Chemistry Online Tuitions. Our expert tutors are here to help you master complex topics with ease. Start your journey with Tutoroot today by booking a FREE DEMO session and take the next step in your academic success. 

[mitivy]

CAS NO.3046-94-4 Factory direct supply 2-(N-BUTYLANILINO)ETHANOL best quality /Best price/DA 90 DAYS

QUICK DETAILS Product name: 2-(N-BUTYLANILINO)ETHANOL CAS:3046-94-4 Molecular formula:C12H19NO Molecular weight:193.29 EINECS No.:221-253-5 Appearance: White powder Other names：2-(N-BUTYLANILINO)ET；2-(N-butylanilino)ethanol；2-(N-BUTYLANILINO)ETHANOL；N-butyl-n-hydroxy aniline；N-butyl-N-phenylethanolamine； 2-ethanol；N-butyl-N-hydroxyethylbenzenamine；N-(2-hydroxyethyl),N-butylaniline；Ethanol,2-(N-butylanilino)- (6CI,7CI,8CI);N-Butyl-N-(2-hydroxyethyl)aniline;N-Hydroxyethyl-N-butylaniline; Purity:≥99% Brand:MIT -IVY INDUSTRY CO.,LTD Density: 1.012±0.06 g/cm3(Predicted) Boiling point: 143-145 °C (Press: 1.5 Torr) Flash point: 140.5°C Vapor pressure: 0.000255mmHg at 25°C Refractive index: 1.547 Acidity coefficient: 14.66±0.10(Predicted) Storage Conditions: 2-8°C Transportation: by sea or by air payment methods: L/C, T/T, D/A, D/P, O/A, paypal, western union etc.accept all payment. Specification The N-Butyl-N-2-hydroxyethylaniline, with CAS registry number 3046-94-4, has the systematic name of 2-ethanol. And its IUPAC name is 2-(N-butylanilino)ethanol. And the chemical formula of this chemical is C12H19NO. What's more, its EINECS is 221-253-5. Physical properties of N-Butyl-N-2-hydroxyethylaniline: (1)ACD/LogP: 2.87; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.71; (4)ACD/LogD (pH 7.4): 2.87; (5)#H bond acceptors: 2; (6)#H bond donors: 2; (7)#Freely Rotating Bonds: 7; (8)Polar Surface Area: 32.26 Å2; (9)Index of Refraction: 1.557; (10)Molar Refractivity: 60.84 cm3; (11)Molar Volume: 188.7 cm3; (12)Polarizability: 24.12×10-24cm3; (13)Surface Tension: 41.4 dyne/cm; (14)Enthalpy of Vaporization: 61.75 kJ/mol; (15)Vapour Pressure: 3.1E-05 mmHg at 25°C. Preparation: this chemical can be prepared by 2-anilino-ethanol and 1-bromo-butane. This reaction will need reagent KI and solvent ethanol. The reaction time is 35 hour(s). The yield is about 53%. You can still convert the following datas into molecular structure: (1)SMILES: CCCCc1ccccc1NCCO (2)InChI: InChI=1/C12H19NO/c1-2-3-6-11-7-4-5-8-12(11)13-9-10-14/h4-5,7-8,13-14H,2-3,6,9-10H2,1H3 (3)InChIKey: SYHWTJYAXFSDBV-UHFFFAOYAR (4)Std. InChI: InChI=1S/C12H19NO/c1-2-3-6-11-7-4-5-8-12(11)13-9-10-14/h4-5,7-8,13-14H,2-3,6,9-10H2,1H3 (5)Std. InChIKey: SYHWTJYAXFSDBV-UHFFFAOYSA-N. Application use for Pharmaceutical Intermediates Superiority 1.High quality with competitive price: We are manufacturer and can provide high quality products with factory price. 2.Fast and safe delivery ① Parcels can be sent out within 48 hours after payment. Tracking number is available. ②Secure and discreet shipment. You have various choices of transportation methods. 3.We have clients throughout the world. ① Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet your desire. ②Market feedback and goods feedback are appreciated, meeting customers's requirement is our responsibility. ③High quality, competitive price, fast delivery, first-class service gain the trust and praise from the customers. Specialized in the manufacture and trading of fine chemicals and reagents. ---- With a R&D group of experienced chemists for the development of Carbohydrate, Nucleotides and Nucleosides. ---- Keeping a steady and long-term relationship with hundreds of cooperate companies for the trading of thousands of products. ---- Advanced equipments to help to deliver high quality production and service. The strict quality inspection and fast delivery system. ---- Having obtained the certification of ISO9001:2008 (international quality management system certification). With strict internal management,we can provide high quality product, which are exported to the United States, Europe and Japan, etc. ---- A comprehensive testing and analysis will be provided to our customers in order to ensure the quality of products. ---- Urgent shipment and fast delivery on receipt of the payment is our promise for all the customers. A professional team working at all times. ----Excellent talents with rich experience in the areas of research, production and quality control. ---- A team of great sales with rich experience in the international trade, who can provide good customer experiences. ---- Service personnel waiting all the time to solve any problem during and after the order at earliest. Company Information MIT -IVY INDUSTRY CO.,LTD  exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, MIT -IVY INDUSTRY CO.,LTD is your best choice. pls contact with us freely for getting detailed product specifications, product tech. Date Sheet, COA and MSDS, prices, delivery time and payment terms. As a leading manufacturer and supplier of chemicals in china, MIT -IVY INDUSTRY  not only supply popular chemicals, but also MIT -IVY INDUSTRY 's r&d center offer custom synthesis services. MIT -IVY INDUSTRY  can provide different quantities of custom synthesis chemicals in lab, plant and industrial scale with more than fifteen years. MIT-IVY INDUSTRY CO.,LTD is a manufacturer and exporter of fine chemical dyes & pharmaceutical intermediates in China. Mainly produce aniline series products and chlorine series products. MIT -IVY Industry Co.,Ltd. is a leading manufacturer and trader of chemical for 16 years which has established its own 4 factories with complete production equipment and meticulous management and maintenance of machinery. We use advanced production technology and test methods to realize production, quality controlling to meet the standard. We have been approved by SGS, ISO9001, ISO140 01, GB/HS16949 and T28001. Technology is the first productive force. It uses science and technology to create a brand, constantly adapts and meets the diverse needs of the market and customers, in order to realize the highest value of the company. MIT -IVY Industry hold “Integrity as root, technology s foundation,quality superiority,and top service”to produce our goods in International standard,our main technology index all meet International standard. We always believe that technology is the first productive force to creat “first class “brand to make out company among the top in this line. So we also set up its own laboratory, hired excellent scientific and technical management personnel, give priority to the development of science and technology, and strive to be the best in the industry. MIT -IVY Industry adhere to benefit the community, and constantly creates value for the customers, holding integrity with mutual benefit and common prosperity. We have first-class professional technical personnel in product research and development. So we can provide key intermediates for your project and shorten your synthesis solution to provide you with high purity products. Be responsible for our clients, staff, environment and society with swift action and economic success belong inseparably together. MIT -IVY Industry focus on early to anchor ecological and social criteria in our business pursue new, sustainable paths. Technology first, quality as the basis, customer as God, integrity as the basis". Our ultimate goal: Based on continuous efforts to develop new chemical fields, we offer environmentally friendly and high-tech products to meet the requirement of our customers. If you are interested in getting more quotations, please add WHATSAPP:0086-13805212761 or E-MAIL:info@mit-ivy.com Main Products   MIT-IVYINDUSTRYCO.,LTDMit-Ivy is a well-known fine chemicals and pharmaceutical intermediates manufacturer with strong R&D support in China. Mainly involved Aniline, Chlorine products. Payment：DA 60 DAYS TEL:008619961957599   E-MAIL:info@mit-ivy.com 产品 Product CAS   N-甲基间甲苯胺 N-Methyl-M-Methylaniline 696-44-6 N-羟乙基苯胺 N-(2-hydroxyethyl)-Aniline 122-98-5 N-乙基对甲苯胺 N-ethyl-p-toluidine   622-57-1 N,N-二甲基邻甲苯胺 N,N-Dimethyl-o-toluidine 609-72-3 N-甲基邻甲苯胺 N-Methyl-o-methylaniline 611-21-2 N,N-二乙基对甲苯胺 N,N-Diethyl-p-toluidine   613-48-9 N,N-二乙基间甲苯胺 N,N-diethyl-m-toluidine 91-67-8 N-氰乙���－N-羟乙基间甲苯胺 N-cyanoethyl-n-hydroxyethyl-m-toluidine 119-95-9 N-乙基间甲苯胺 N-ethyl-m-toluidine 102-27-2 N-氰乙基－N-羟乙基苯胺 N-cyanoethyl-n-hydroxyethyl aniline 92-64-8 N-乙基邻甲苯胺 N-ethyl-o-toluidine 94-68-8   N,N-二羟乙基对甲苯胺 N,N-dihydroxyethyl-p-toluidine   .3077-12-1   N,N-二乙基苯胺 N,N-diethyl aniline 91-66-7 N-丁基－N-羟乙基苯胺 N-butyl-n-hydroxy aniline 3046-94-4 N-乙基－N-氰乙基间甲苯胺 N-ethyl-n-cyanoethyl-m-toluidine 148-69-6 N-丁基－N-氰乙基苯胺 N-butyl-n-cyano aniline   61852-40-2 N-甲基－ N-羟乙基苯胺 N-methyl-n-hydroxyetjyl aniline   93-90-3 N,N-二丁基苯胺 N,N-dibutyl aniline 613-29-6 N-乙基－N-氰乙基苯胺 N-ethyl-n-cyanoethyl aniline   148-87-8 N-正丁基苯胺 N-Phenyl-N-butyl aniline 1126-78-9   N-乙基－N-羟乙基苯胺 N-ethyl-n-hydroxyethyl aniline 92-50-2 N-乙基－N-苄基间甲苯胺 N-ethyl-n-benzyl-m-toluidine 119-94-8 N-甲基－N-苄基苯胺 N-methyl-n-benzyl aniline 614-30-2 N-异丙基苯胺 N-isopropy aniline   768-52-5   N-乙基－N-苄基苯胺 N-ethyl-n-benzyl aniline 92-59-1 N-环已基苯胺 N-Cyclohexylaniline 1821-36-9   N,N-二甲基间甲苯胺 N,N,3-trimethyl- Dimethyl-m-toluidine   121-72-2   N-甲基甲酰苯胺 N-Methylformanilide 93-61-8   N-甲基-N-羟乙基对甲苯胺 N-(2-HYDROXYETHYL)-N-METHYL-4-TOLUIDINE 2842-44-6 N,N-二甲基对甲苯胺 N,N,4-trimethyl-;dimethyl-4-toluidine; Dimethyl-p-toluidine 99-97-8   N-甲基对甲苯胺 N-Methyl-p-toluidine   623-08-5 N,N-二甲基苯胺 N,N-dimethyl aniline 121-69-7 N,N-二羟乙基苯胺 N,N-dihydroxyethyl aniline 120-07-0 N-乙基-N-羟乙基间甲苯胺 N-Ethyl-N-Hydroxyethyl-M-Toluidine 91-88-3   N,N-二羟乙基间甲苯胺 N,N-dihydroxyethyl-m-toluidine   91-99-6   N-乙基苯胺 N-ethyl aniline 103-69-5   N-甲基苯胺 N-methyl aniline 100-61-8 N-甲基对甲苯胺 4-Methyl-N-methylaniline 623-08-5 N-甲基-N-羟乙基苯胺   2-(N-Methylanilino)ethanol 93-90-3 N,N-二甲基对苯二胺 N,N-DIMETHYL-P-PHENYLENEDIAMINE 99-98-9 3-(甲氨基)甲苯 3-(Methylamino)toluene 696-44-6 N,N-二异丙醇对甲苯胺 DIPROPOXY-P-TOLUIDINE 38668-48-3 N,N-二乙基邻甲苯胺 N,N-DIETHYL-O-TOLUIDINE 606-46-2 N-甲基对硝基苯胺 N-Methyl-4-nitroaniline 100-15-2 N,N-二苄基苯胺 N,N-DIBENZYLANILINE 91-73-6 N-苯基乙醇胺 2-Anilinoethanol 122-98-5 N-苄基苯胺 N-Phenylbenzylamine 103-32-2 N-羟乙基间甲苯胺 N-2-HYDROXYETHYL-M-TOLUIDINE 102-41-0 N-乙基N氯乙基间甲苯胺 N-ETHYL-N-CHLOROETHYL-M-TOLUIDINE 22564-43-8   N,N-二乙基-4-氨基-2-甲基苯甲醛 4-Diethylamino-2-methylbenzaldehyde 92-14-8 间甲苯胺 M-Toluidine  MT 108-44-1 1,4-二溴-2,5-二碘苯 1,4-DIBROMO-2,5-DIIODOBENZENE 63262-06-6 N,N-二羟乙基对苯二胺硫酸盐 N,N-Bis(2-hydroxyethyl)-p-phenylenediamine sulphate 54381-16-7 N-乙基-N-苄基-4-氨基苯甲醛 4-(N-Ethyl-N-benzyl)amino-benzoaldehyde 67676-47-5 N,N-二乙基-4-氨基苯甲醛 4-Diethylaminobenzaldehyde 120-21-8 对二甲胺基苯甲醛 p-Dimethylaminobenzaldehyde 100-10-7 2-氨基噻唑 2-Aminothiazole 96-50-4 对甲苯胺 P-Toluidine  PT 106-49-0 N,N-双(2-羟基丙基)苯胺 N,N-BIS(2-HYDROXYPROPYL)ANILINE 3077-13-2 N-乙基-N-氰乙基苯胺 3-Ethylanilinopropiononitrile 148-87-8 N-乙基-N-(3'-磺酸苄基)苯胺 N-Ethyl-N-benzylaniline-3'-sulfonic acid 101-11-1 邻苯甲酰苯甲酸甲酯 Methyl 2-benzoylbenzoate 606-28-0 对羟基苯甲酸甲酯 Methylparaben 99-76-3 十四酸异丙酯 Isopropyl myristate 110-27-0 棕榈酸异丙酯 Isopropyl palmitate 142-91-6 邻甲苯胺 O-Toluidine  OT 95-53-4 4-甲基-N-苯基苯胺 N-PHENYL-P-TOLUIDINE 620-84-8 N,N-二甲基苄胺 N,N-Dimethylbenzylamine  BDMA 103-83-3 N,N-二甲基甲酰胺   N,N-Dimethylformamide  DMF .68-12-2 N-甲基甲酰胺 N,N-Dimethylformamidedimethyl acetal  (DMF-DMA) 4637-24-5 N,N-二甲基乙酰胺 N,N-Dimethylacetamide   DMAC 127-19-5 N,N-二乙基间甲苯甲酰胺 避蚊胺 N,N-diethyl-m-toluamide    DEET 134-62-3 N,N-二乙基羟胺 N,N-Diethylhydroxylamine  DEHA 3710-84-7 N,N-二甲基-间甲基苯胺 N,N-DIMETHYL-M-TOLUIDINE 121-72-2 N-甲基二苯胺 N-Methyldiphenylamine 552-82-9 N,N-二氰乙基苯胺 N,N-Dicyanoethylaniline 1555-66-4 N-乙基-2-硝基苯胺 N-Ethyl-2-Nitro-Benzenamine 10112-15-9 N-(2-羟乙基)乙二胺 AEEA 111-41-1 二乙烯三胺(DETA) Diethylenetriamine  DETA 111-40-0 三乙烯二胺 Triethylenediamine 280-57-9 三乙烯四胺 TriethylenetetramineTETA 112-24-3 四乙烯五胺 TEPA 112-57-2 间二氯苯 1,3-Dichlorobenzene   MDCB 541-73-1 间二三氟甲苯 1,3-Bis(trifluoromethyl)-benzene 402-31-3 粉末丁腈橡胶 MITIVY33-1（POLYMER/ADHESIVE COMPOUNDING） 9003-18-3 十六烷基氯化吡啶 Cetylpyridinium chloride monohydrate 6004-24-6 对氯甲苯 4-Chlorotoluene 106-43-4 无水硫酸钠 SODIUM SULFATE 15124-09-1 碱性嫩黄 Auramine O 2465-27-2 偶氮二异丁腈 2,2'-Azobis(2-methylpropionitrile) 78-67-1 Read the full article

[audere-noctu]

100 Days of Productivity: Day 7 - Monday, November 18, 2019

Day 7 - Monday, November 18, 2019

What I planned to achieve:

20 minutes of morning yoga

Start researching for the Performance Enhancing Assignment for Kinesiology.

Start researching for the Training and Dietary Programming Assignment for Kinesiology.

Write my Chemistry unit 3 test.

Start researching for the Evaluation of Products and Technologies Assignment for Chemistry.

Reflection:

I finally wrote my Chemistry unit 3 test, it was a lot easier than I thought and my struggles with Enthalpy, Reaction Rates and good old Hess's Law seem so inane now, it's ridiculous just how difficult I was making the whole thing out to be.

I couldn't get to the rest of my assignments because of a few scheduling conflicts but I'm happy with the overall outcome.

[a-rock-in-the-ground]

My chem professor: Alright we’ll pick up where we left of on enthalpy of reaction

Me: *zones out ten minutes in*

Chem prof.: ...and that’s why I don’t believe in evolution.

Me: *snaps back into focus so hard I get whiplash* What the FUCK did I miss