摘要
介绍了H2 SiF6 水溶液的组成、物理性质和化学性质 .其蒸气压的大小、密度、当量电导以及传质系数等都与H2 SiF6 的浓度相关 ;H2 SiF6 的水溶液中存在多种平衡 ,在强酸性或碱性溶液中 ,SiF2 -6 会分解 ,H2 SiF6 的水溶液能溶解过量的SiO2 ;氟硅酸能腐蚀多种金属 ,与氧化物。
Nature and composition, physical properties and chemical reactions of aqueous solution of H 2SiF 6 are presented. Vapor pressure, densities, and spreading coefficient have something with the concentration of H 2SiF 6. In aqueous H 2SiF 6 solution there are various dynamical equilibria and dissolution of SiO 2 often happens. In strong acidic or alkaline solutions SIF 2- 6 decomposes. Aqueous H 2SiF 6 can react with metals and alloys, oxides, hydroxides and inorganic ions and compounds.
出处
《昆明理工大学学报（理工版）》
2001年第3期93-96,共4页
Journal of Kunming University of Science and Technology(Natural Science Edition)
