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Sodium Hexafluorosilicte Basic Information
Product Name : Sodium Fluorosilicate /Sodium Hexafluorosilicate
CAS:16893-85-9
MF:Na2SiF6
MW:188.06
UN:2674
EINECS:240-934-8
Mol File:16893-85-9mol
HS Code:2826901010
Sodim Hexafluorosilicate Chemical Properties
Sodium Hexafluorosilicate is white crystal or crystalized powder; specific weight is 2.68; slightly soluble in water,
insouble in alcohol, corrosive and toxic;when ignited to over 450,it would decompose into sodium fluoride
and silicon tetrafluoride .
Sodium Hexafluorosilicate Specification
Executing Standard HG/T3252-2000
| Item | National Standard(%) | Result(%) |
| (Na2SiF6) | ≥98.5 | ≥99.0105 |
| Loss of weight on drying | ≤0.30 | ≤0.30 |
| Free acid(HCl) | ≤0.1 | ≤0.047 |
| Chloride (CL) | ≤0.15 | ≤0.11 |
| Sulphates(SO4) | ≤0.25 | ≤0.23 |
| Iron(Fe) | ≤0.02 | ≤0.02 |
| Water | ≤0.4 | ≤0.18 |
Sodium Hexafluorosilicate Usages
Sodium Hexafluorosilicate is used as antiseptic in timber industry, hygroscopic agent of acidresisting
concrete, solidifying agent in natural latex products, additive in plating with zinc, nickel, iron and filler
in plastic andfluorinating agent in pharmaceuticals and drinking water. It is used to produce insecticide
in pesticide ,industry and sodium fluoride in man-made cryolite.
Sodium fluorosilicate SSF for Wood and Leather Preservation.
magnesium fluorosilicate
