Silicon Dioxide Classification fumed

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Specifications

1.fumed silica
2.China manufacturer
3.Production capacity 3000 ton per month
4.Third party inspection certificate

Microsilica can be used in a variety of cementation products, such as concrete, grouts, and mortars as well as elastomeric, polymer, refractory, ceramic and rubber applications.
We collect micro silica from our own 16 ferro silicon furnaces. Monthly we collect approx. 2000 MT micro silica with Sio2 85-94%

Silicon Dioxide Classification fumed

Q: What are the states of silicon dioxide?: Silica widely exists in nature and forms rocks with other minerals. Natural silica, which is about 12% of the earth's crust, is composed of two kinds of crystalline and indefinite forms. Quartz crystals are crystalline silica with different crystalline shapes and colors.

Q: Why is silica in food?: The silica in the food industry is mainly used to prevent the aggregation of powder food caking, in order to maintain a class of food additives or for the adsorption of free flowing liquid spices, oils, vitamins, making powder, such as oil powder, solid perfume and solid wine products. (milk powder)

Q: What effect does silica content have on cement properties?: Formation of Portland cement clinker and the effect of silica calcium oxide calcium silicate minerals, if low silica content in clinker of silicate minerals is little, silicate minerals are the main mineral cement play strength, the content of deficiency will lead to low strength cement; if the silicon content of two oxide high, then the condensation rate and increase the rate of the early strength of cement slow, late strength will significantly increase, and can enhance the corrosion resistance of cement.

Q: What are the factors that affect the thickness of silicon dioxide films?: It is difficult to control the film thickness because of the unsuitable expansion ratio and traction ratio;

Q: How to remove silica from slag: Alumina is aluminum hydroxide in low temperature 140-150 degrees Celsius under dehydration, also called activated alumina, alumina industry. For the cubic close packed oxygen ion in the structure approximation, Al3+ irregularly distributed in eight surface and tetrahedral interstices surrounded by oxygen ions. Alumina insoluble water soluble in strong acid or alkali solution, it is heated to 1200 DEG C is converted to alpha alumina. Gamma alumina is a porous material, the inside surface area per gram of up to hundreds of square meters, the high active adsorption ability. Industrial products are often cylindrical particles with colorless or pale pink the pressure is good. In oil refining and petrochemical industry is a commonly used adsorbent, catalyst and catalyst carrier; in industry is the acid removal agent of transformer oil, turbine oil, also used for chromatographic analysis in the laboratory is strong neutral; The desiccant, drying capacity is not less than the use of phosphorus pentoxide, after repeated use in 175 DEG 6-8h heating can regenerate.

Q: Silica gel and what reacts to produce silica?: As can be seen from the molecular formula, the silica gel is actually hydrated silica. Under intense heat, the reaction has a decomposition reaction to produce water and silica. This reaction equation

Q: What are the differences between micro powders, silica gel and silica?: Micro silica gel in English, Colloidal, Silicon, Dioxide silica, English Silicon Dioxide. In reading foreign drug instructions, most of the time using Silicon Dioxide, but does not represent the use of precipitation is really prepared by silica, it may also be micro silica gel.

Q: What's the effect of silica in the new health care product?: The total amount of silica in the human body is about 7 grams. Animal tissues and plant ashes contain a small amount of this chemical.

Q: What's the difference between silica gel and white carbon?: White carbon, also known as precipitation, hydrated silica, fine silicic acid. Properties: the main component SiO2, its molecular formula SiO2nH2O1, white, amorphous fine powder, light weight, with an original diameter of less than 0.0003 cm. The melting point of 1750 DEG C, with a high insulation, insoluble in water and soluble in acid, caustic soda and hydrofluoric acid, the high temperature decomposition, water absorption. This product is a kind of reinforcing filler used in rubber and plastics industries, it has a rubber reinforcing effect after adding carbon black, the main characteristics of the vulcanizate of white carbon black is: anti expansion high strength, high elongation, elasticity and good heat resistance. This product is suitable for natural gum and synthetic gum. In the natural / styrene butadiene rubber, butadiene rubber / natural join the truck tire tread 5--10 phr silica instead of part of the carbon black, can improve the rubber tear strength, thermal stability and improve the properties of vulcanizates, in the use of formula, and silane coupling agent (Si--69) effect is better.

Q: What's the difference between white carbon and carbon black? Can they be replaced?: There are two kinds of substances. Some aspects can be substitutedCarbon black is the hydrocarbon gas in the process of strict control of incomplete combustion or pyrolysis of a black powder.

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