Diethyl carbonate is an important material in carbonate and an important organic chemical raw material. Diethyl carbonate is a colorless liquid with special flavor at room temperature, melting point - 43 C, boiling point 126.8 C, flash point 31 C, spontaneous combustion temperature 445 C, relative density 0.9752 (20/4), refractive string 1.3845; soluble in alcohol, ether, ketone, ester; insoluble in water, with the odor of ether. The chemical formula of diethyl carbonate is C5H10O 3, molecular weight 118.13, CAS NO.105-58-8. Its molecular structure formula is as follows:

Diethyl carbonate contains ethyl, ethoxy, carbonyl and carbonyl ethoxy groups in its molecular structure. It can be used for ethylation, ethoxylation, carbonylation and numerical ethoxylation, as well as condensation and cyclization reactions with various organic compounds. The hydrolysis of diethyl carbonate and water occurs, but the hydrolysis rate is slow, and the hydrolysis rate will be accelerated under alkaline conditions. Diethyl carbonate can react with compounds of active hydrogen groups such as alcohols, phenols, amines and esters, and polycarbonate can be formed with diols or binary phenols. Diethyl carbonate has the versatility of esters. Section 2 summarizes that diethyl carbonate is an important variety of carbonate and has a wide range of applications. It can be used in many organic synthesis, especially in the synthesis of pharmaceutical and pharmaceutical intermediates, such as pesticide pyrethroids and pharmaceutical phenobarbital intermediates. Diethyl carbonate can also be used as a solvent, such as synthetic resin, natural resin, nitrocellulose, cellulose ether and in vacuum tube cathodic fixing paint. Electronic grade pure diethyl carbonate can be used as a detergent for color TV picture tubes. Diethyl carbonate can also be used as surfactant and battery liquid additive, etc. It is an excellent solvent and textile auxiliaries. It is widely used in organic synthesis as ethylating agent, carbonylation agent and carbonyl ethoxylation agent. It is also used as solvent for nitrocellulose, cellulose ether, synthetic resin and natural resin.