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Hexafluorosilicic acid

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Hexafluorosilicic acid

Molecular formula: H2F6Si CAS# 16961-83-4
Categories: Inorganic acids
PubChem CID: 21863527 | ChemSpider ID: 17215660 | NSC 16894
Names
English:
Dihydrogen hexafluorosilicate
Dihydrogen hexafluorosilicate(2-)
Dihydrogenhexafluorosilicate
EINECS:241-034-8
Fluorosilicic acid
Fluosilicicacid (6CI)
Hexafluorosilicic acid [Wiki]
Hydrogen hexafluorosilicate (H2SiF6)
Silicate(2-), hexafluoro-, dihydrogen
Silicate(2-),hexafluoro-, hydrogen (1:2)
Silicon hexafluoride dihydride
dihydrogen hexafluorosilanediuide
fluosilic acid
hexafluorosilicon(2-);hydron(IUPAC)
hydrofluorosilic acid
hydrofluorosilicic acid
oxonium hexafluoridosilicate(2−)
oxonium hexafluorosilanediuide
silicofluoric acid
silicofluoridd
silicofluoride

Variants of the formula:

H2[SiF6]
F|Si^--<`\F`\0H^+><`/F><|F><\F>/F/0H^+
$L(1.2)H^+# -0F-Si^2-<`\F></F><`/F><\F>-F-0H^+
H2SiF6
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Hexafluorosilicic acid is involved

  • SiO2 + 6HF -> H2[SiF6] + 2H2O
  • H2[SiF6] -> SiF4"|^" + 2HF
  • 2{M}[Au(CN)4] + H2[SiF6] -> 2Au(CN)3 + {M}2[SiF6] + 2HCN , where M = K Na
  • H2[SiF6] + 2{M}OH -> {M}2[SiF6] + 2H2O , where M = K Na
  • H2[SiF6] + Na2CO3 -> Na2[SiF6] + H2O + CO2"|^"