Sodium Silicofluoride

Specification:
Appearance--------White Crystals Powder
Content---------------99.0% Min.
Free Acid(HCL)--------0.10% Max
Water Insoluble Matter--0.4% Max
Moisture--------------0.5% Max.
Fineness(250 Um Sieve)90.0% Min.
Iron, Fe--------------0.02% Max
Chloride, Cl----------0.15mg/ml Max.
Sulphate, As SO4------0.25% Max.
Loss On Drying(105 Deg C)0.30% Max  
Heavy Metals, As Pb--- 0.05% Max.