This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.
讨论了二氯甲烷替代一氟三氯甲烷进行软质聚氨
泡沫
生产。
This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.
讨论了二氯甲烷替代一氟三氯甲烷进行软质聚氨
泡沫
生产。
Most other processes use chemical solvents, like Methylene Chloride or Ethyl Acetate to decaffeinate coffee beans.
而通常这个过程,有些工艺会使二氯甲烷(
作萃取剂)或乙酸乙
(
作溶剂)等。
Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation.
二茂铁基苯基甲醇与三氟化硼-乙醚溶液在二氯甲烷中作,
二茂铁苯基甲基碳正离子。
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,选乙酰氯作酰化剂、二氯甲烷作酰化溶剂,测定含环氧基聚
羟值。
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