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[Chemical Knowledge]：Properties and Uses of Dimethyl Carbonate

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Dimethyl carbonate (Dimethyl Carbonate, referred to as DMC) is an important organic chemical raw materials, with a variety of excellent properties and a wide range of uses. This article will detail the properties of dimethyl carbonate and its use in the field of chemical production raw materials.

1. the nature of dimethyl carbonate

1. physical properties of
dimethyl carbonate is a colorless and transparent, pungent odor of liquid, molecular formula C3H6O3, relative molecular mass is 90.07. It is insoluble in water, but miscible with alcohols, ethers, esters and other organic solvents. Dimethyl carbonate has a boiling point of 90.2°C, a melting point of -4°C and a density of 1.073g/cm3.

2. chemical properties
dimethyl carbonate has strong reactivity and can react with a variety of compounds. It has ester group and carbonyl group, can be ester exchange, alcoholysis, aminolysis and other reactions. In addition, dimethyl carbonate is also oxidizing and can be reduced by a strong reducing agent.

2. the use of dimethyl carbonate

of dimethyl carbonate in the chemical production of raw materials in the field of a wide range of uses, the following list of several main aspects:

1. solvent
of dimethyl carbonate is a good solvent, can be used in paints, coatings, adhesives, printing and dyeing auxiliaries and other fields. Because of its low toxicity and high solubility, dimethyl carbonate has gradually replaced the traditional benzene series, ketone series and other toxic solvents.

2. Methylation reagent
Dimethyl carbonate can be used as a methylation reagent for the synthesis of methyl compounds. For example, reaction of dimethyl carbonate with phenol can produce methylphenol, reaction with amines can produce N-methylamine, etc.

3. Fuel additive
dimethyl carbonate can be used as an additive for gasoline, diesel and other fuels to improve its octane number and combustion performance and reduce exhaust emissions.

4. synthesis of other chemicals
dimethyl carbonate can also be used for the synthesis of other chemicals, such as ethylene glycol, propylene glycol, diphenyl carbonate, etc.

In short, dimethyl carbonate has a variety of uses in the field of chemical production raw materials, because of its unique properties and wide application prospects, has received more and more attention and research.

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