Packaging & Delivery Packaging Detail: sodium silicofluoride:In Plastics Bag then to woven Bags. N.W.: 25 kgs for each bag. Delivery Detail: with in 7 days after place the order Specifications 1.sodium hexafluorosilicate  2.White free flowing power  3.The certificate is complete  4.Reasonable Price  5.Good service High quality without impurities sodium hexafluorosilicate of industrial use Product Description Product name: sodium silicofluoride Packing: In Plastics Bag then to woven Bags. N.W.: 25 kgs for each bag. Main Usage:As opacifying agent for vitreous enamels and opalescent glass. As coagulant for latex. In zirconia pigments. In the manufacture of frits and ceramic enamels.As a preservative agent of wood. As a flux in melting of light metals. As an acidifying agent in the textile industry. In the pharmaceutical industry. Items Standard Index Results of Analysis% Sodium Silicofluoride 99.00%MIN 99.15% Loss of weight on drying at 105°C 0.30%MAX 0.25% Free acid(as HCl) 0.10%MAX 0.083% Chlorides(as Cl-) 0.10%MAX 0.08% Sulphate(SO42-) 0.25%MAX 0.21% Iron(Fe) 0.02%MAX 0.0033% Water-insoluble matter 0.5% MAX 0.36% Heavy metal(as Pb) 0.01%MAX 0.00035% Particale Size Distribution     Passing through 420 micron (40 mesh) sieve 98% MIN 100% Passing through 250 micron (60 mesh) sieve 90%MIN 99 .95% Passing through150 micron (100mesh) sieve   94.3% Passing through 74 micron (200mesh) sieve   33.8% Passing through 44 micron (325 mesh) sieve 25% MAX 11.8%