Acidic oxides of them can directly generate acid compounds with the water, but did not directly SiO2 compound with water. Its corresponding hydrate - silicate, only the reaction with the corresponding acid was obtained with a soluble silicate (silicate insoluble in water, is a weak acid silica Which sales, it is also more acidic than carbonate weaker). Acidic oxides generally not with the action of acid, but the SiO2 was sorted hydrofluoric acid reacts silica Which is guaranteed to generate gaseous silicon tetrafluoride. SiO2 + 4HF == SiF4 ↑ + 2H2O ordinary glass, quartz glass main component is silica. Hydrofluoric acid, which can be used to etch glass. Hydrofluoric acid carved lettering on the glass, the laboratory can not use hydrofluoric acid silica-containing glass, ceramics, porcelain, pottery bloom, usually available in plastic bottles. SiO2 reacted with a strong base solution can generate liquid glass, silica gel which is a mineral, commonly used as a binder. So laboratory reagent bottle full bloom alkaline solution without glass stopper, and with a rubber stopper. Silica structure. "" "The use of silica silica is widely used, the main raw material has been used in high-performance fiber-optic communications material is silica. Generally more pure quartz glass used to manufacture quartz. Quartz glass used in the manufacture of high temperature chemical instruments. Crystal important components used to manufacture the electronics industry, silica optical instrument company, also used to make high-level industrial and glasses tablets. Diatomaceous earth is naturally occurring amorphous silica, low aquatic diatoms are the remains of a white solid or powder, porous, lightweight, soft solid, strong absorption. Insoluble in water. Which is good quality silica, Weifang Fuyuan (certified), silica is provided by Environmental Science and Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Protection Technology Co., Ltd. (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan a better future.