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如何检验氯气中是否含有氯化氢
更新时间: 2020-07-01 00:00:00  

检验氯气中是否含有氯化氢可采用的方法是:用湿润的淀粉碘化钾试纸,因为氯气不能使干燥的有色布条褪色,氯化氢通入硝酸银溶液也能生成白色的氯化银沉淀。氯气是先水洗除酸气,再通过浓硫酸干燥,将此气体通入硝酸银百分之95的乙醇溶液,变浑浊则表示有盐酸。

关键词: 如何 检验 氯气 是否 含有 氯化氢

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