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Yigyooly Chemicals Co., Ltd.
Yigyooly Chemicals Co., Ltd.
Products
Sodium fluorosilicate
Molecular formula Na2SiF6
Molecular weight 188.06
Dangerous level 6.1
Physicochemical properties colorless or white hexagonal crystalline powder. Odorless tasteless. Relative density 2.679g/cm3.
Uses Wood industry as antiseptic,
Quality index
Index name Milky white additive type Industrial material type Solvent, auxiliary type Refractory material type Anti-corrosion type
Top Grade First product Qualified product            
Sodium fluorosilicate (as dry) % ≥99.0 ≥99.0 ≥98.5 ≥97.0 ≥98.5 ≥98.5 ≥97.0
Fe % ≤0.01 ≤0.02 ≤0.02 ≤0.02 ≤0.02 ≤0.02 ≤0.02
Free acid (HCL)% ≤0.10 ≤0.10 ≤0.15 ≤0.20 ≤0.15 ≤0.15 ≤0.20
Heavy metals (as Pb) % ≤0.005 ≤0.02 ≤0.05 ≤0.05 ≤0.05 ≤0.05 ≤0.05
Water-insoluble matter ≤0.30 ≤0.40 ≤0.50 ≤1.00 ≤0.50 ≤0.50 ≤1.00
Loss on dry at 105℃ ≤0.3       ≤0.4 ≤0.4 ≤0.6
Fineness on 250/um sieve % ≥99.0       ≥98.5 ≥98.5 ≥97.0