以氯气和氢氧化钠为原料制备次氯酸钠溶液,控制其中游离碱含量在10.8%左右,有效氯在8.0%左右。
Sodium hypochlorite solution has been prepared by chlorine and sodium hydroxide, the content of free alkali should be controlled at about 10.8%, and the effective chlorine at about 8.0%.
介绍了环氧氯丙烷合成新工艺:在催化剂和添加剂存在下,甘油与工业盐酸反应制得二氯丙醇,然后二氯丙醇与碱反应制得环氧氯丙烷产品。
Epichlorohydrin was synthesized from alkali and glycerol dichlorohydrin which was synthesized from glycerol and industrial hydrochloric acid in the presence of catalyst and additive.
目前山莨菪碱的质控方法有高氯醚滴定法和酸性染料比色法,二者在灵敏度和选择性方面都存在不足。
The currently used quality control methods for anisodamine are perchloric titrimetry and colorimetry. They are insufficient in sensitivity and selectivity.
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