Main methanol, ethanol, ethylene glycol, acetone, ethylene dichloride, methylene chloride, diethylene glycol.

主营甲醇，乙醇，乙二醇，丙酮，二氯乙烷，二氯甲烷，二乙二醇。

Objective: Using the headspace Gas - chromatography methods to measure the assay of residual solvent (acetone, ethylene chloride and ethanol) in Cefazolin sodium.

目的：建立一种气相色谱法同时测定原料药头孢唑林钠中有机溶剂丙酮，二氯甲烷、乙醇残留量的方法。

The comonomers include those unsaturated ones, such as ethylene monomer, ethylene chloride, acrylate, unsaturated carboxylic acid, acrylamide, acrylonitrile and so on.

可与醋酸乙烯酯共聚的单体很多，其中主要有乙烯、氯乙烯、丙烯酸酯、不饱和羧酸、丙烯酰胺、丙烯腈、乙烯基醚等不饱和单体。

Ethylene glycol diacetate was synthesized from ethylene glycol and acetic acid with ferric chloride hydrate as catalyst. The yield of ester was 92% under the optimum condition.

利用氯化铁水合物为催化剂，从乙二醇和冰醋酸制备了二乙酸乙二醇酯，在最佳条件下其收率达92%。

Modified chlorinated polyethylene (CPE) resins are the copolymer of ethylene, vinyl chloride and rubber.

改性氯化聚乙烯（CPE）树脂是乙烯、氯乙烯及橡胶的共聚物。