silicon dioxide

タイトルまたは説明

Chemical properties very stable. Insoluble in water also not heel water reaction. Is it an acid oxide, with general acid reaction. Gaseous with silicon dioxide currently or the reactions that produce gaseous hydrofluoric acid four fluoride silicon. With hot alkali solution or melting alkali reaction generate silicate and water. With various metal oxide under high temperature reaction generate silicate. Used for manufacturing quartz glass, optical instruments, chemical vessels, common glass, fire-proof material, optical fiber, ceramic, etc. The nature of the silica not lively, it is not with fluoride, currently the halogen, outside and hydrofluoric acid halogenating hydrogen and hydrogen halogen sulfuric acid, nitric acid, acid and high chlorine acid role. Currently, hydrofluoric acid) is the only (sio2 dissolve acid can make the soluble in water, generate the: test silicate sio2 fluoride than surface area.