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ge hua he wu jie chu gong ren de jian kang jian hu
Author(s): 
Pages: 17+25
Year: Issue:  1
Journal: Occupational Health and Emergency Rescue

Keyword:  铬化合物铬酸盐硫酸铬健康监护三价腐蚀金理化特性氯化铬于水电镀槽;
Abstract: <正> 一、理化特性铬(Cr)为银白色有光泽耐腐蚀金属,广泛存在于土壤和地面水中,也是人体必须的微量元素。一般铬化合物均以三价和六价铬为主。氧化铬、硫酸铬、氯化铬等都是稳定的三价化合物。六价铬化合物在水中比较稳定,且都溶于水。如铬酸及其盐类、重铬酸及其盐类等。六价铬的毒性较大,三价铬毒性小于六价铬。
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