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如何检验氯化氫气体中是否混有氯氣？

返回打印发布时间：2022/5/24 点击：9058

如何检验氯化氫气体中是否混有氯氣？

检验氯化氫气体中是否混有氯气，可采用的方法是：用湿润的淀粉碘化钾试纸。湿润的碘化钾淀粉试纸遇氯气变蓝。

进行物质的检验时，要依据物质的特殊性质和特征反应，选择适当的试剂和方法，准确观察反应中的明显现象，如颜色的变化、沉淀的生成和溶解、气体的产生和气味、火焰的颜色等，进行判断、推理、验证即可。

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