1H-Benzimidazole-5-carboxylic acid,6-[(4-bromophenyl)amino]-7-fluoro-, methyl ester

Alas! In order to understand the transformation of methyl ether, it is necessary to study the way it is formed into elements and atoms. For methyl ether, there are chemical compounds, and their chemical formula is\ (C_ {2} H_ {6} O\).
In terms of its atomic composition, it contains two carbon atoms, six atoms and one oxygen atom. From the perspective of transformation, carbon atoms are composed of total carbon atoms and oxygen atoms. Among them, the outermost carbon atom has four atoms, and if you want to determine the size of the eight corners, you can form a tetrahedron with other atoms.
In methyl ether, the carbon atoms are first divided into four phases, and each carbon atom is then divided into three atoms to form a common phase, and the oxygen atom is connected to one of the carbon atoms. The bonding method of this atom can be used to form the special properties of methyl ether.
The special properties of methyl ether make it have specific physical properties. Because of its weak molecular force phase, it often appears weak under normal conditions. And because of its chemical properties, it can be used for many chemical reactions, such as acid, acid, etc., and can be used in the chemical industry. It can be used as a solution, reaction, etc. In short, the transformation of methyl ether is the fundamental to understanding its properties and uses.

Today there is a question: "1H 🥰, boron and boric acid, 5, carboxylic acid, 6, [ (4-hydroxybenzyl) urea group], 7, hydrocarbons, what are the physical properties of methane?" And listen to me for you.
Methane is a colorless and odorless gas at room temperature and pressure. Its density is smaller than that of air, about 0.55 times that of air. This property makes methane float on air. Because it is insoluble in water, methane can be collected by draining gas.
Furthermore, the melting point of methane is quite low, the melting point is -182.5 ° C, and the boiling point is -161.5 ° C. This is because there is only a weak van der Waals force between methane molecules, so it requires very little energy to condense.
As for flammability, methane is highly flammable, burning in air, the flame is light blue, and a lot of heat is released. The chemical equation for combustion is: CH+ 2O ³ $\ stackrel {ignite }{=\!=\!=}$ CO ² + 2H 2O O. This reaction is the basis of methane as a fuel and is one of the commonly used energy sources in the world.
And because it is a non-polar molecule, according to the principle of similar compatibility, methane is insoluble in polar water, but soluble in non-polar organic solvents such as carbon tetrachloride. < Br >
Boron, on the other hand, is a solid at room temperature, and its crystal structure is complex, resulting in its high hardness. The melting point of boron is 2076 ° C, and the boiling point is 3927 ° C. This is due to the formation of strong covalent bonds between boron atoms, which makes the atoms bond tightly. To change its state requires a lot of energy.
Boric acid, a white crystalline powder or a colorless microstrip of pearl luster scales, has a greasy feel. Boric acid has a small solubility in water, and its solubility increases with increasing temperature. The melting point of boric acid is 169 ° C. When heated, it will gradually dehydrate, first transform into metaboric acid, and continue to heat into boron trioxide.
Carboxylic acids, a wide variety, but many have a special smell. Lower carboxylic acids, such as formic acid and acetic acid, are liquids at room temperature and pressure, and can be miscible with water, because the carboxyl group can form hydrogen bonds with water molecules. With the increase of carbon atoms, the solubility of carboxylic acids decreases, and higher carboxylic acids are mostly solid and insoluble in water. The boiling point of carboxylic acids is higher than that of alcohols with similar molecular weight, because the carboxylic acid molecules can form dimers and enhance the intermolecular force.
[ (4-hydroxybenzyl) urea group] related compounds are often solid, and the specific physical properties vary depending on the structure of the rest of the molecule. Generally speaking, because they contain polar groups, the solubility in polar solvents may be greater.
Hydrocarbons have different physical properties due to different structures. Hydrocarbons of small molecules, such as methane and ethane, are gases; as the number of carbon atoms increases, they gradually change into liquids or even solids. Hydrocarbons are mostly insoluble in water, but soluble in organic solvents, and their density is generally less than that of water.

Borax is cold and salty in nature, and is often used in alchemy pharmaceuticals and gold melting silver. First, in the art of alchemy, it can make the texture of medicinal pills purer and the effect is better, so alchemists value it. Second, in metallurgy, it helps to melt metals, making them seamless, easy to remove impurities, and improving the quality of metals. This is its important function in metallurgy.
As for methyl ether, its main use is very wide. In the field of people's livelihood, it can be used as fuel for cooking and heating needs. Because of its clean combustion and high heating efficiency, it is gradually used by the people. In the industrial world, it is also an important chemical raw material for the preparation of a variety of organic compounds, such as some special ethers and esters, which add to industrial production. And in the field of refrigeration, methyl ether can be used as a refrigerant, which has a good cooling effect and has less impact on the environment. Compared with traditional refrigerants, it has many advantages.
Boron of borax is also useful in medicine, agriculture, etc. In medicine, it can be used as a disinfectant and preservative to protect the human body from the invasion of pathogens; in agriculture, it is an indispensable trace element for plant growth, which can promote plants to bloom and bear fruit and increase their disease resistance. And because of its flammability and chemical activity, methyl ether is an important existence in many industries such as energy and chemical industry, promoting the development and progress of the industry.

Ah, there are three ways to make methyl ether.
First, co-heat with sulfuric acid and ethanol. First, take an appropriate amount of ethanol, slowly inject it into a vessel containing sulfuric acid, stir well, and heat at controlled temperature. When ethanol encounters sulfuric acid, it becomes methyl ether after dehydration. The reason for the reaction is that ethanol is catalyzed by sulfuric acid, and a molecule of water is removed from the molecule to obtain the product of methyl ether. This process requires attention to temperature control. If the temperature is high, it is easy to produce ethylene and other by-products, so it should be stabilized at a suitable temperature range to achieve good yield.
Second, use (4-hydroxyphenyl) ethanolamine as raw material. First carefully prepare (4-hydroxyphenyl) ethanolamine, and then in a suitable reaction environment, through specific chemical changes, the molecular structure is rearranged and converted to obtain methyl ether. This path requires accurate control of the reaction conditions, such as pH, temperature, and catalyst dosage. Due to the special structure of the raw material, subtle differences in conditions, or special changes in the reaction direction and yield, it is necessary to operate with caution.
Third, by etherification method. Select the appropriate halogenated hydrocarbon and sodium alcohol, and place it in the appropriate solvent according to a certain ratio. The halogen atom of the halogenated hydrocarbon interacts with the alkoxy group of sodium alcohol to break the bond and form a bond, forming methyl ether. This reaction requires high purity of raw materials, and factors such as solvent properties and reaction time are all related to the effectiveness of the reaction. All factors need to be carefully considered to optimize the reaction conditions before the formation of methyl ether can be smooth and the yield is considerable.

If you want to store and transport methyl ether well, you need to pay attention to many things.
First, it is related to the storage place. Methyl ether is volatile and flammable, and the selected place must be cool, dry and well ventilated. Do not place it in a place with high temperature, open flame or direct sunlight, so as to avoid the rise of temperature causing the vaporization of methyl ether and the increase of pressure, which will cause the risk of container rupture or fire and explosion. As mentioned in "Tiangong Kaiwu", all kinds of materials should be stored in a suitable environment, and the same is true for the storage of methyl ether.
Second, about the choice of containers. A container that can withstand the pressure of methyl ether and the material is suitable must be used. Common metal materials, such as steel cylinders, need to be regularly checked for their sealing and pressure resistance to prevent the leakage of methyl ether. Because it is mixed with air after leakage, it will explode in case of fire source, which is extremely harmful.
Third, when transporting, the driving must be steady to avoid large vibrations and collisions such as sudden brakes and sharp turns, and prevent damage to the container. Transportation vehicles also need to be equipped with corresponding fire and emergency equipment to prepare for emergencies.
Fourth, the operator must undergo professional training and be familiar with the characteristics and safety procedures of methyl ether. The operation process is rigorous and meticulous, such as when filling and unloading, the flow rate and pressure are controlled to prevent static electricity from being generated. Because methyl ether is a substance that is prone to static electricity, electrostatic discharge or fire.
Fifth, good monitoring and alarm devices should be installed in the place to monitor the concentration of methyl ether in real time. Once the concentration exceeds the standard, call the police immediately, so that personnel can take measures quickly to avoid danger expansion.
All of these are matters that require careful attention during the storage and transportation of methyl ether. A little negligence can lead to disaster and cannot be ignored.