Iron(III) fluoride

Iron(III) fluoride, also known as ferric fluoride, are inorganic compounds with the formula FeF3(H2O)x where x = 0 or 3. They are mainly of interest by researchers, unlike the related iron(III) chloride. Anhydrous iron(III) fluoride is white, whereas the hydrated forms are light pink.

Iron(III) fluoride
Names
Other names
iron trifluoride, ferric fluoride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.093
PubChem CID
RTECS number
  • NO6865000
UNII
  • InChI=1S/3FH.Fe/h3*1H;/q;;;+3/p-3 Y
    Key: SHXXPRJOPFJRHA-UHFFFAOYSA-K Y
  • InChI=1/3FH.Fe/h3*1H;/q;;;+3/p-3
    Key: SHXXPRJOPFJRHA-DFZHHIFOAS
SMILES
  • F[Fe](F)F
Properties
FeF3
Molar mass 112.840 g/mol (anhydrous)
166.89 g/mol (trihydrate)
Appearance pale green crystals
Density 3.87 g/cm3 (anhydrous)
2.3 g/cm3 (trihydrate)
Melting point > 1,000 °C (1,830 °F; 1,270 K)
slightly soluble (anhydrous)
49.5 g/100 mL (trihydrate)
Solubility negligible in alcohol, ether, benzene
Magnetic susceptibility (χ)
 +13,760·10−6 cm3/mol
Structure
Rhombohedral, hR24
Space group
 R-3c, No. 167
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Corrosive
GHS labelling:
Danger
H302, H312, H314, H332
P260, P301+P330+P331, P303+P361+P353, P305+P351+P338, P405, P501
Safety data sheet (SDS) External SDS
Related compounds
Other anions
 Iron(III) oxide, Iron(III) chloride
Other cations
 Manganese(III) fluoride, Cobalt(III) fluoride, Ruthenium(III) fluoride
Related compounds
 Iron(II) 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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Infobox references
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