Sodium Silicofluoride

Product Description:  White free flowing power         Formular: Na2SiF6           Purity: 99%              Standard: GB23936-2009
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 99.18%
Fluor(F) 59.70%MIN 60.10%
Loss of weight on drying at 105íŠ 0.30%MAX 0.15%
Free acid(as HCl) 0.10%MAX 0.051%
Chlorides(as Cl-) 0.10%MAX 0.052%
Sulphate(SO42-) 0.25%MAX 0.14%
Iron(Fe) 0.02%MAX 0.01%
Water-insoluble matter 0.5% MAX 0.33%
Heavy metal(as Pb) 0.01%MAX 0.001%

Particale Size Distribution

Passing through 420 micron (40 mesh) sieve 98% MIN     100%
Passing through 250 micron (60 mesh) sieve 90% MIN     99.3%
Passing through 150 micron (100 mesh) sieve 95%
Passing through 74 micron (200 mesh) sieve 55.1%
Passing through 44 micron (325 mesh) sieve 25% MAX     18.9%

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.