The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.

通过对其酰化原理分析,选用乙酰氯作酰化剂、二氯甲烷作酰化溶剂,测定含环氧基聚酯的羟值。

In this paper,we studied the law of alcoholization and acetification of apple vinegar which was produced with fast liauid-state fermentation,using Fusi apple as raw material.

以富士苹果为原料,采用快速液态法生产果醋,探讨其酒化和醋酸化规律。