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浓硝酸是剧毒品还是易燃液体
更新时间: 2020-09-11 00:00:00  

浓硝酸有强腐蚀性,可属危险品,剧毒品,浓硝酸不能燃烧的。

分子式为HNO3,纯HNO3是无色有刺激性气味的液体,市售浓硝酸质量分数约为百分之六十八,沸点为83摄氏度,易挥发,可以任意比例溶于水,混溶时与硫酸相似会释放出大量的热所以需要不断搅拌,并且只能是把浓HNO3加入水中而不能反过来。浓度在百分之九十八的硝酸叫"发烟硝酸",因这种酸更易挥发,遇潮湿空气形成白雾,有腐蚀性,并且有毒要注意戴聚乙烯塑料手套以及特别的口罩。

关键词: 硝酸 毒品 还是 易燃 液体

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