天气预报 > 其他 > 硫化氢危险临界浓度是多少
硫化氢危险临界浓度是多少
更新时间: 2020-10-21 00:00:00  

硫化氢危险临界浓度是150mg/m3,达到此浓度时,对生命和健康会产生不可逆转的或延迟性的影响。硫化氢分子式为H2S,分子量为34.076,标准状况下是一种易燃的酸性气体,无色,低浓度时有臭鸡蛋气味,浓度极低时便有硫磺味,有剧毒。其水溶液为氢硫酸,酸性较弱,比碳酸弱,但比硼酸强。分子量为34.08,蒸汽压为2026.5kPa/25.5℃,闪点为

关键词: 硫化氢 危险 临界 浓度 多少

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