Chemical formula Na2SiF6
Molecular weight 188.055
CAS 16893-85-9
EINECS 240-934-8
Appearance White crystalline powder
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
Sodium Silicofluoride 99%Min - Product Identification CAS No. : 16893-85-9 H.S. Code : 2826.901000 Formula : Na2SiF6 Molecular Weight : 188.06 Toxicity : highly toxic to all plant and animal life Synonyms : Sodium Silicofluoride; Sodium Hexafluorosilicate; Sodium Fluosilicate; Earwig Bait; Disodium Hexafluorosilicate Raw Materials : fluorosilicic acid with sodium carbonate - Physical And Chemical Properties Physical State : (Apperance) It is colorless hexagonal, odorless and tasteless crystal with relative density 2.679. It is hygroscopic. It is soluble in ether, insoluble in alcohol. The solubility in acid is greater than in water. It decomposes in alkaline solution and produces sodium fluoride and silicon dioxide. It is decomposed to sodium fluoride and silicon tetrafluoride by heating to 300'C. It is noxious! Specific Gravity : 2.679 Solubility in Water : 0.76 g/100 ml at 25 C , 2.45 g/100 ml at 100 C - Applications It is used as antiseptic in timber industry, hygroscopic agent of acid-resisting concrete, solidifying agent in natural latex products, additive in plating with zinc, nickel, iron and filler in plastic and fluorinating agent in pharmaceuticals and drinking water. It is used to produce insecticide in pesticide industry and sodium fluoride in man-made cryolite. - Specification Quality Standard : HG/T3252-2000 Appearance : It is colorless hexagonal, odorless and tasteless crystal Testing Items : Quality Standard Reference Testing Results Purity (NA2SIF6) DRY BASIS : 99.0%Min / 99.53%Min Loss on Drying At 105Oc : 0.3%Max / 0.14% Free Acid(Based on HCI) : 0.1%Max / 0.032% Water-Insoluble Matter : 0.40%Max / 0.32% Heave Metal(Based on Pb) : 0.02%Max / 0.015% Iron(Fe) : 0.02%Max / 0.014% Fineness(Through 250um test bolter) : 90.0%Min / 95% - Transportation Storage : Store at a ventilating, and dry place, keep away from food. Packing : In 25kg and 50kg plastic woven bag lined with high pressure polyethylene plastic bag Hazard Class : 6.1 UN No. : 2674 - Other Trade Information Min. Order Quantity : 10 MTS Supply Capacity : 50,000mts /Year Loading Capacity : 27mts/1080bags(1x20'FCL) Port of Loading : Huangpu Port, China Fresh Stocks : Yes Ref.Price : USD405.- ~ USD425.-/MT FOB Huangpu, China Shipment Time : Within 2-3 weeks upon receipt of advance payment or L/C . Payment Time : T/T In Advance, Sight L/C, L/C 60 days after B/L date Origin : Yunan Kunming Sample Availability : Yes Main Export Markets : India, Indonesia, Pakistan, Egypt, Turkey
