Sodium hexafluorosilicate - Na2SiF6 (CAS: 16893-85-9)
Sodium hexafluorosilicate is an ionic and inorganic compound that can be synthesized by using neutralization of solutions of hexafluorosilicic acid with alkali metal bases
The compound is mainly used in water fluoridation. Viscosity modifier for solution, suspension or emulsion. Dispersing aid for insoluble solids. Forms a gel in water. Films from aqueous or organic solutions have high tensile and cohesive strength. It is used in some countries as additives for water fluoridation, opal glass raw material, ore refining, or other production of other fluoride chemical, e.g. sodium fluoride, cryolite, or aluminium fluoride
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Product Brief Introduction: with the largest consumption for construction and building materials. It is mainly used as enamel fluxing agent, glass opalizing agent, acid-proof clay, acid-proof concrete coagulator and wood preservative. It can also be used for insecticide. Product Hazard or Harmful Ingredients:It does not combust or explode but has corrosivity and certain toxicity. Product Physical Properties:The product is white powder crystals and basically neutral. It is difficult to dissolve in water and acid and the density is 2.37g/cm3. Product Chemical Properties:It is stable under normal temperature. It does not combust nor explode when it is heated or contacts with redox materials. Spillage Treatment Method:Simple cleaning and burying Protection Measures for Product Transport & Storage:To prevent from caking and going bad, it should be kept indoor or be covered with protection materials like canvas and free from the blazing sun. Packing :Knitted bags lined polyethylene plastic bags double packaging, Weighing 25Kg/50KG/1000Kg/1200kg. Other Information: Anti-caking agent can be added at the request of customers. Technical Specifications Analysis items Standard Na2SiF6 99% min Loss of weight on drying at 105â?? 0.3% max Free acid (as HCl) 0.1% max Chloride (as Cl) 0.1% max Sulphate (SO4) 0.3% max Iron(Fe) 0.02% max Water-insoluble matter 0.5% max Particle size distribution Passing through 40 mesh sieve 98% min Passing through 60 mesh sieve 90% min Passing through 325 mesh sieve 25% max
Chemical formula Na2SiF6 Molecular weight 188.055 CAS 16893-85-9 EINECS 240-934-8 Appearance White crystalline powder