Anti-caking agent silicon dioxide, Jinhai Wang (certified), silica Changyi

 Silica - a production process of ultrafine silica use rice husk ash, boiler ash at a temperature of 140--170 ℃ silica matting, the reaction pressure is 5--7MPa, the reaction time is 4-5 hours Under the conditions, and soda ash solution in a stirred tank reactor chemical reaction;. b liquid with a chamber filter press for the first time the filtrate by rapid cooling cooler to 20-22 ℃, the filtrate was a lot in the cooling process colloidal silica, precipitated silica prices, and sodium carbonate decomposed;. c the decomposition of sodium carbonate and precipitated silica second filter, and then the chamber filter press dioxide within Silicon filtration, washed with water to neutral; relatively stable chemical properties of silica. Do not react with water. It is an acidic oxide silica, not with general acid. Gaseous hydrogen fluoride reacts with silica gaseous silicon tetrafluoride. Alkali with hot or molten alkali silicates and water produced by the reaction. With more metal oxides at high temperature reaction silicates. For the manufacture of quartz glass, optical instruments, chemical containers, ordinary glass, refractory materials, optical fiber, ceramics and the like. The nature of the silica inert, it does not fluorine, hydrogen fluoride other than halogen, hydrogen halide and sulfuric acid, nitric acid, perchloric acid effect (except hot concentrated phosphoric acid). Anti-caking agent silicon dioxide, Jinhai Wang (certification), the silica provided by Weifang Jinhai Wang Changyi Chemical Co. Weifang Jinhai Wang Chemical Co., Ltd. (www.jhwchem.com) (www.jhwchem.com) Shandong Weifang, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In Jinhai Wang leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinhai Wang.