Chemical properties folded relatively chemically stable. Insoluble in water nor react with water. Acidic oxides, not with the general acid. Gaseous hydrogen fluoride is reacted with silica to form gaseous silicon tetrafluoride. Concentrated alkali solution with hot or molten alkali silicate and water reaction. With more metal oxides at high temperature produced by the reaction of silicate. For the manufacture of quartz glass, optical instruments, chemical containers, ordinary glass, refractory materials, carbon dioxide superfine fiber quality, ceramics and the like. The inert nature of the silica, it does not fluorine, halogen other than hydrogen fluoride, hydrogen halides and sulfuric acid, nitric acid, perchloric action (except hot concentrated phosphoric acid). Common concentrated phosphoric acid (or pyrophosphate) under high temperature corrosion of silica to produce the heteropolyacid [2], molten borate or boric anhydride at elevated temperatures may also corrosion of silica, in view of this nature, boric acid salts may be used in ceramic firing flux, in addition to hydrogen fluoride can be dissolved silica acid, soluble in water to generate the fluosilicic acid:? SiO + 4HF = SiF4 ↑ + 2H O at? rubber, silicone rubber applications without reinforcement, and its strength is generally only 03MPa, almost unusable. To reach the level of practical application, it must be filled with modified. In common inorganic powder filler (calcium carbonate, precipitated silica, etc.), the best effect is fumed silica. After adding fumed silica to improve its strength up to 40 times the yield point modulus can be increased by 1O times, elongation, creep performance can be very significant improvement l. After filling fumed silica ultrafine carbon dioxide company, microscopic interactions within the material has undergone great changes in carbon dioxide, in addition to the presence of molecular chains caused by weak van der Waals force due to mechanical entanglement and macromolecular chains due mechanical entanglement, but also there is a strong interaction between fumed silica aggregates hydrogen bonds between the silica and the polymer is strongly adsorbed or bonded role adsorbed polymer on the surface of the silica aggregate Oita entangled in a strong effect chains, making the interface has been significantly improved adhesion, formed within the silicon rubber polymer macromolecular chains throughout the network structure of carbon black plate, giving the material a superior overall performance. Ultrafine carbon quality | CO | Weifang Fuyuan provided by the Environmental Protection Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Protection Technology Co., Ltd. (www.wfdafuyuan.com) (www.wfdafuyuan.com) strong, credible, Shandong Weifang other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Weifang Fuyuan and you hand into the brilliant, for a better future! You can also access (www.wfdafuyuan.com/supply_details_46405080.html), for more information about the company.