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Potassium hexafluoroantimonate

From Wikipedia, the free encyclopedia
Potassium hexafluoroantimonate
Names
IUPAC name
potassium;hexafluoroantimony(1-)
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.156.339 Edit this at Wikidata
EC Number
  • 628-032-6
  • InChI=1S/6FH.K.Sb/h6*1H;;/q;;;;;;+1;+5/p-6
    Key: LQKKGPUEJBHVHZ-UHFFFAOYSA-H
  • [K+].F[Sb-](F)(F)(F)(F)F
Properties
F6KSb
Molar mass 274.849 g·mol−1
Appearance powder
Melting point 846
Boiling point 1505
Hazards
GHS labelling:[1]
GHS07: Exclamation mark GHS09: Environmental hazard
Warning
H302, H332, H411
P261, P264, P270, P271, P273, P301+P317, P304+P340, P317, P330, P391, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Potassium hexafluoroantimonate is an inorganic chemical compound with the chemical formula KSbF6.[2]

Synthesis

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Potassium hexafluoroantimonate can be prepared by reacting potassium pyroantimonate K2H2Sb2O7 with hydrogen fluoride or by treating the product of the reaction of a mixture of solid antimony(III) oxide and potassium hydroxide with hydrogen peroxide solution (30%) with hydrochloric acid (48%).[3]

Also, the compound can be prepared by reacting antimony pentafluoride and potassium hexafluoromanganate.[4]

SbF5 + K2MnF6 → 4KSbF6 + 2MnF3 + F2

Uses

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Potassium hexafluoroantimonate is used as a pharmaceutical intermediate.[5]

Chemical properties

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Potassium hexafluoroaluminate can cause violent reactions with strong acids and oxidizing agents.[6]

References

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Salts and covalent derivatives of the fluoride ion
HF ?HeF2
FrF RaF2   LrF3 Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
PF6, AsF6, SbF6 compounds
AlF2−5, AlF3−6 compounds
chlorides, bromides, iodides
and pseudohalogenides
SiF2−6, GeF2−6 compounds
Oxyfluorides
Organofluorides
with transition metal,
lanthanide, actinide, ammonium
nitric acids
bifluorides
thionyl, phosphoryl,
and iodosyl

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