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在冶金、化工、轻工及仪表等行业的生产中,常使用汞或汞的化合物。为了保证生产工人的身体健康、保护环境不受污染,在生产作业点和车间废气排放口,需要经常测试空气中汞蒸气的含量。现介绍一种汞蒸气指示纸。用它测试空气中汞蒸气浓度,既简单又可靠且很便宜,还可以做为经常性的监测标记。一、汞蒸气指示纸的加工制备将相同体积的10%碘化钾溶液和10%硫酸铜溶液混合在一起,待生成沉淀物后,倾出上清液;将沉淀物移入漏斗中,小心地用蒸馏水洗涤,边洗边过滤;用10%亚硫酸钠溶液洗潦沉淀物至无色,再用蒸馏水
In the metallurgical, chemical, light industry and instrumentation industries such as production, often use mercury or mercury compounds. In order to ensure the health of production workers and to protect the environment from pollution, it is necessary to constantly test the content of mercury vapor in the air at production sites and at the exhaust of the workshop. We now introduce a mercury vapor indicator paper. Use it to test the concentration of mercury vapor in the air is simple, reliable and cheap, but also can be used as a regular monitoring mark. A mercury vapor indicator paper processing and preparation The same volume of 10% potassium iodide solution and 10% copper sulfate solution were mixed together to form a precipitate, the supernatant was poured; the precipitate was transferred to the funnel, carefully with distilled water Washed, washed while filtering; washed with 10% sodium sulfite precipitate scoured the precipitate to colorless, then distilled water