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发表于 2017-8-28 17:51:28
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参照USP通则 solutions-test solutions :Chlorine TS (Chlorine Water)— A saturated solution of chlorine in water. Place the solution in small, completely filled, light-resistant containers. Chlorine TS, even when kept from light and air, is apt to deteriorate. Store it in a cold, dark place. For full strength, prepare this solution fresh.
实验室制备氯气方法:用浓盐酸跟二氧化锰混合加热制取氯气。
加热
4HCl + MnO2 == MnCl2 + 2H2O +Cl2↑
然后将氯气通入水中即得饱和氯水。 |
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