论文部分内容阅读
化学作为一门实用性很强的自然科学,自其形成以来就与生产、生活和社会有着密切的关系。 遭遇硫酸不用慌 众所周知,强酸强碱对人的皮肤的腐蚀性非常严重。这是因为浓硫酸具有很强的吸水性、脱水性和氧化性,溶于水时放出大量的热。浓硫酸一旦触及皮肤,轻则造成局部发红疼痛,中则烧成水疱、周围充血,重则使皮肤及皮下组织完全坏死,烧成焦黑色,治愈后期可结成褐色痂皮。至于碱烧伤,一般比酸烧伤更严重。 令人气愤的是,强酸强碱的这种性质,竟被不法之徒当作“化学武
As a highly practical natural science, chemistry has a close relationship with production, life and society since its formation. Encounter sulfuric acid do not panic As we all know, acid and alkali on human skin corrosion is very serious. This is because concentrated sulfuric acid has strong water absorption, dehydration and oxidation, release a lot of heat when dissolved in water. Concentrated sulfuric acid once touched the skin, ranging from local redness caused by pain, while the blisters were blown around the congestion, while leaving the skin and subcutaneous tissue completely necrosis, burning coke black, cured later can form brown crusts. As for alkali burns, they are generally more severe than acid burns. It is anger that this property of acid and alkali is actually treated as a “chemical weapon by criminals.”