Apperance

White crystalline powder

Na2SiF6

99%Min.

Free acid(as HCl)

0.10%Max.

Loss of weight on drying at 105℃

0.30%Max.

Cl

0.15%Max.

Size passing through a 250um mesh screen

90% Min.

Fe

0.02%Max.

Heavy metals

0.05% Max.

Application

1. insecticide
2. enamel cosolvent
3. glass cream-white agent
4. concreting coagulant
5. wood preservative