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YANGS & M ENTERPRISE LIMITED
YANGS & M ENTERPRISE LIMITED
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