Methanol CAS#67-56-1

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• Chemical Name:  Methanol
• CAS No.:    67-56-1
• Molecular Fomula: ：CH4O
• Molecular weight：32.04
• Appearance:Colorless liquid
• Sample：Available

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Description of NEUTRAL

• Methanol, also known as methyl alcohol, wood alcohol, wood naphtha, methyl hydrate, or wood spirits, is a chemical with the formula CH3OH (often abbreviated MeOH). Methanol acquired the name “wood alcohol” because it was once produced chiefly as a byproduct of the destructive distillation of wood. Today, industrial methanol is produced in a catalytic process directly from carbon monoxide, carbon dioxide, and hydrogen.
  Methanol is the simplest alcohol, being only a methyl group linked to a hydroxyl group. It is a light, volatile, colorless, flammable liquid with a distinctive odor very similar to that of ethanol (drinking alcohol).[11] However, unlike ethanol, methanol is highly toxic and unfit for consumption. At room temperature, it is a polar liquid, and is used as an antifreeze, solvent, fuel, and as a denaturant for ethanol. It is also used for producing biodiesel via transesterification reaction.
  Methanol is produced naturally in the anaerobic metabolism of many varieties of bacteria, and is commonly present in small amounts in the environment. As a result, the atmosphere contains a small amount of methanol vapor. But in only a few days, atmospheric methanol is oxidized by sunlight to produce carbon dioxide and water.
  Methanol is also found in abundant quantities in star forming regions of space, and is used in astronomy as a marker for such regions. It is detected through its spectral emission lines.[12]
  Methanol burns in oxygen, including open air, forming carbon dioxide and water:
  2 CH3OH + 3 O2 → 2 CO2 + 4 H2O
  Methanol ingested in large quantities is metabolized first to formaldehyde and then to formic acid[13] or formate salts, which are poisonous to the central nervous system and may cause blindness, coma, and death. Because of these toxic properties, methanol is frequently used as a denaturant additive for ethanol manufactured for industrial uses. This addition of methanol exempts industrial ethanol (commonly known as “denatured alcohol” or “methylated spirit”) from liquor excise taxation in the US and some other countries.

Basic Info of NEUTRAL

Basic Info
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Basic Info

Numbering system

Properties

Safety Info

What is application of Methanol ?

• With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Methanol   which has developed particularly rapidly in recent years. Do you know about Methanol?
• The official answer：Methanol, also known as “wood alcohol”, is an organic compound and the simplest saturated mono-alcohol in structure. It is a colorless, transparent, flammable, and volatile toxic liquid. Accidentally drinking 5-10 ml can cause blindness, and drinking large amounts can lead to death. Methanol is non-corrosive to metals at room temperature (except lead and aluminum) and has a slight alcoholic odor. Relative density 0.792 (20/4 ℃), melting point -97.8 ℃, boiling point 64.5 ℃, flash point 12.22 ℃, 463.89 ℃, vapor density 1.11, vapor pressure 13.33KPa (100mmHg21.2 ℃), vapor and air mixture explosion limit 6 ~ 36.5%.

What’s the application of application of Methanol ?

• Methanol has a wide range of uses and is a basic organic chemical material and high-quality fuel. It is mainly used in fine chemicals, plastics, and other fields to make formaldehyde, acetic acid, chloromethane, methyl ammonia, dimethyl sulfate, and many other organic products, and is also one of the important raw materials for pesticides and pharmaceuticals. Methanol can be used as a new clean fuel after deep processing, and also added to gasoline blending. Methanol oxidation to formaldehyde Methanol is directly oxidized to formaldehyde in the presence of high temperature, pumice silver, catalyst, or another solid catalyst. Currently, more than 40% of methanol is used to make formaldehyde at home and abroad, which in turn is used to synthesize resins, plastics, and other chemical materials. Paraformaldehyde is an engineering plastic with excellent performance, and its use is very extensive. Formaldehyde is also used to make butanediol, urotropine, and nearly one hundred other downstream products. Methanol ammoxidation to methylamine is mixed with methanol and ammonia in a certain ratio and synthesized at 370~420℃ and 5.0~20.0MPa pressure with activated alumina as the catalyst to produce a mixture of monomethyl amine, dimethylamine, and trimethylamine, and then distilled to obtain one, two, or three methylamine products. Mono-, di- and trimethylamine are used in pesticides, pharmaceuticals, dyestuffs, or as organic raw material intermediates. Methanol is dehydrated in the presence of a metal silica-aluminum catalyst or ZSM-5 molecular sieve to produce dimethyl ether. Methyl formate is produced by the dehydrogenation of methanol. Methyl formate is a raw material for organic synthesis and can be used to make formamide, dimethylformamide, etc. Formamide is the raw material of medicine, fragrance, dyestuff, and also used as paper treatment agent, softener of fiber industry, the polar solvent of organic synthesis, etc. Dimethylformamide is an important organic chemical raw material and excellent solvent, which can be used as gas absorbent, pesticide, poly chlorine ester synthetic leather, and polyacrylonitrile wire drawing and butadiene extraction, etc.

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