Indium(III) fluoride
IUPAC name
Indium(III) fluoride
Other names
Indium trifluoride
ECHA InfoCard 100.029.095 Edit this at Wikidata
EC Number
  • 232-005-0
Molar mass 171.82 g/mol
Appearance white solid
Density 4.39 g/cm3
Melting point 1,172 °C (2,142 °F; 1,445 K)[1]
Rhombohedral, hR24
R-3c, No. 167
GHS labelling:
GHS06: ToxicGHS07: Exclamation mark
H301, H315, H319, H335
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
Flash point non-flammable
Related compounds
Other anions
Indium(III) chloride
Indium(III) bromide
Indium(III) iodide
Other cations
Aluminum fluoride
Gallium(III) fluoride
Thallium(I) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Indium(III) fluoride or indium trifluoride is the inorganic compound with the formula InF3. It is a white solid.

It has a rhombohedral crystal structure very similar to that of rhodium(III) fluoride. Each In center is octahedral. It is formed by the reaction of indium(III) oxide with hydrogen fluoride or hydrofluoric acid.[3]

Indium(III) fluoride is used in the synthesis of non-oxide glasses. It catalyzes the addition of trimethylsilyl cyanide (TMSCN) to aldehydes to form cyanohydrins.[2]


  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, p. 112, ISBN 0-8493-0594-2, retrieved 2008-06-19
  2. ^ a b "435848 Indium(III) fluoride 99.9+ % trace metals basis". Sigma-Aldrich. Retrieved 2008-06-19.
  3. ^ Christoph Hebecker, R. Hoppe (1966). "Zur Kristallstrukur von Indiumtrifluorid und Thalliumtrifluorid (Crystal structure of In and Tl trifluorides)". Naturwissenschaften. 53: 104. doi:10.1007/BF00601468. S2CID 29051930.