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Hexafluorosilicic acid CAS#16961-83-4

  • Hexafluorosilicic acid CAS#16961-83-4
  • Hexafluorosilicic acid CAS#16961-83-4
  • Hexafluorosilicic acid CAS#16961-83-4
  • Hexafluorosilicic acid CAS#16961-83-4
  • Hexafluorosilicic acid CAS#16961-83-4

Hexafluorosilicic acid CAS#16961-83-4

Wide Industrial Applicability：Suitable for use across water treatment, chemical manufacturing, metallurgy, and organic synthesis, offering broad application versatility.


Key Raw Material for Fluoride Compounds：An essential precursor for the production of aluminum fluoride, cryolite, and various hexafluorosilicate salts, supporting stable downstream manufacturing.


Functional Performance in Metallurgy：Effectively used as an electrolyte in the Betts electrolytic process, contributing to efficient and reliable lead refining operations.


High Reactivity in Chemical Synthesis：Acts as a specialized reagent for selective Si–O bond cleavage in silyl ethers, enabling precise control in organic synthesis processes.



Phone ：+86 18626059817
WhatsApp ：+86 18626059817
Email ：cora@wxqysteel.com
product description

Product Description of Hexafluorosilicic acid CAS#16961-83-4

Hexafluorosilicic acid is an inorganic acid with broad industrial applications. It is mainly used in water fluoridation to reduce dental caries incidence. It serves as a key raw material for manufacturing aluminum fluoride, cryolite and various hexafluorosilicate salts, and is also applied in the production of silicon and silicon dioxide. It acts as an electrolyte in the Betts electrolytic process for lead refining. In organic synthesis, it is used as a special reagent for the selective cleavage of Si–O bonds in silyl ethers.


Product Application of Hexafluorosilicic acid CAS#16961-83-4

Hexafluorosilicic acid is widely used as a fluoride source and can be processed into various high-value hexafluorosilicate salts. It acts as an electrolyte in the Betts electrolytic process for lead refining. In organic chemistry, it serves as a key reagent for cleaving Si–O bonds in silyl ethers. Furthermore, it is applied as a wood preservative and for surface modification of calcium carbonate.

Product Information

Parameters


Boiling point108-109°C
density1.22 g/mL at 20 °C (lit.) 1.31 g/mL at 25 °C
vapor pressure23hPa at 19.85℃
refractive index1.35
Fp108-109°C
storage temp.−20°C
solubilityH2O: 1 mg/mL, clear, colorless
formLiquid
pka1.83[at 20 ℃]
colorClear colorless
Specific Gravity1.38 (40%)
Water SolubilityMiscible with water.
Hydrolytic Sensitivity0: forms stable aqueous solutions
Merck144,182
Exposure limitsACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Stability:Stable in aqueous solution.
InChI1S/F4Si.2FH/c1-5(2,3)4;;/h;2*1H
InChIKeyAUJBMDCSBIPDEH-UHFFFAOYSA-N
SMILESF.F.F[Si](F)(F)F
CAS DataBase Reference16961-83-4(CAS DataBase Reference)
EPA Substance Registry SystemFluosilicic acid (16961-83-4)


Safety Information


Hazard CodesC
Risk Statements34-35-20/21/22
Safety Statements26-36/37/39-45-27
RIDADRUN 1778 8/PG 2
WGK Germany3
RTECSVV8225000
F8月10日
Hazard NoteCorrosive
TSCATSCA listed
HazardClass8
PackingGroupII
HS Code28111990
Storage Class6.1D - Non-combustible acute toxic Cat.3
toxic hazardous materials or hazardous materials causing chronic effects
Hazard ClassificationsAcute Tox. 3 Dermal
Acute Tox. 4 Oral
Eye Dam. 1
Skin Corr. 1
Hazardous Substances Data16961-83-4(Hazardous Substances Data)
ToxicityLD50 oral in rat: 430mg/kg


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