硫化氢--qsf999的安全生产小屋

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硫化氢 | 2011-11-24 11:27:00

硫化氢

硫化氢为无色气体。具有臭蛋味。分子式H2-S。分子量34.08。相对密度1.19.熔点-82.9摄氏度。沸点-61.8摄氏度.易溶于水，易溶于甲醇类、石油溶剂和原油中。可燃上限为45.5%，下限为4.3%。燃点292摄氏度。
　　硫化氢经粘膜吸收快，皮肤吸收甚慢。人吸入70至150毫克／米硫化氢1至2小时出现呼吸道及眼刺激症状，2至5分钟后嗅觉疲劳闻不到臭味。吸入760毫克／立方米吸入1000毫克／立方米数秒钟后很快出现急性中毒，呼吸加快后呼吸麻痹而死亡。
　　硫化氢对粘膜的局部刺激作用系由接触湿润粘膜后分解形成的硫化钠以及本身的酸性所引起。对机体的全身作用为阻断细胞内呼吸导致全身性缺氧。由于中枢神经对缺氧最敏感，因而首先受到损害。

By:qsf999 | 阅读全文 | 回复(13) | 引用通告 | 编辑

Re:在漫画中识别身边的违章 | 2017-3-4 14:24:18

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Re:在漫画中识别身边的违章 | 2016-10-23 3:48:34

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Re:在漫画中识别身边的违章 | 2016-10-22 3:03:48

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Re:在漫画中识别身边的违章 | 2016-10-21 13:58:31

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Re:在漫画中识别身边的违章 | 2016-10-20 22:25:23

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Re:在漫画中识别身边的违章 | 2016-10-20 12:12:58

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Re:在漫画中识别身边的违章 | 2016-10-16 2:10:50

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Re:在漫画中识别身边的违章 | 2016-10-14 22:40:45

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