理化性质硫化氢,分子式为H2S,在标准状况下是一种易燃的酸性剧毒气体。其无色,在低浓度时有臭鸡蛋气味,是一种重要的化学原料。它能溶于水,易溶于醇类、石油溶剂和原油。硫化氢与空气或氧气以适当的比例(4.3%~46%)混合可形成爆炸性混合物,遇明火、高热能引起燃烧爆炸,因此,含有硫化氢气体的作业现场应配备硫化氢监测仪。完全干燥的硫化氢在室温下不与空气中的氧气发生反应,但点 Physical and chemical properties of hydrogen sulfide, the formula H2S, in the standard case is a highly toxic flammable acid gas. Its colorless, stinky egg smell at low concentrations, is an important chemical raw material. It is soluble in water, soluble in alcohols, petroleum solvents and crude oil. Hydrogen sulfide mixed with air or oxygen at an appropriate ratio (4.3% ~ 46%) can form explosive mixtures. In case of open flame, high heat can cause combustion and explosion. Therefore, a hydrogen sulfide gas monitor should be equipped at the site where hydrogen sulfide gas is used. Fully dry hydrogen sulfide does not react with the oxygen in the air at room temperature, but the point