The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.
通过化原理分析,选用乙氯作化剂、二氯甲烷作化溶剂,测定含环氧基聚酯的羟值。
The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.
通过化原理分析,选用乙氯作化剂、二氯甲烷作化溶剂,测定含环氧基聚酯的羟值。
Methyl thioacetate was prepared by using acetyl chloride and methyl mercaptan as starting raw material in this paper.The yield of product is 69.3%.Itcan be used in seasoning flavor.
可用于种调味香精的食用香料硫代乙酸甲酯的合成进行初步研究,产率达到693%,所合成的产品做光谱分析和质子核磁共振分析,确定化学结构。
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