供货周期: | 一周 |
品牌: | 珀金埃尔默 |
货号: | HC000361 |
物理化学性质:干燥的氯化钴试纸遇水会由蓝色变成红色。
使用说明:
1、检验溶液的性质:取一小块试纸在表面皿或玻璃片上,用沾有待测液体的玻璃 棒或胶头滴管点于试纸的中部,观察颜色的变化,判断溶液的性质。
2、检验气体的性质:先用蒸馏水把试纸湿润,粘在玻璃棒的一端,用玻璃棒把试 纸靠近气体,观察颜色的变化,判断气体的性质。
操作与贮存:密封干燥避光保存。
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