Iron(II) chromite

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Iron(II) chromite
Names
IUPAC name
Iron(2+) chromite
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.013.782 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 215-159-3
PubChem CID
RTECS number
  • GB4000000
UNII
  • InChI=1S/2Cr.Fe.4O/q;;+2;;;2*-1
    Key: VUIWSEWFMMYPHW-UHFFFAOYSA-N
  • O=[Cr][O-].O=[Cr][O-].[Fe+2]
Properties
FeCr2O4
Molar mass 223.83 g/mol
AppearanceBrown-black solid
Density 4.97 g/cm3
Melting point 2,190 to 2,270 °C (3,970 to 4,120 °F; 2,460 to 2,540 K)
insoluble
Solubility Slightly soluble in acid
2.16
Structure
cubic
Hazards
GHS labelling:
GHS-pictogram-pollu.svg
H317
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Iron(II) chromite is an inorganic compound with the chemical formula FeCr2O4.

Contents

Preparation

It is created by the sintering of chromium(III) oxide and iron(II) oxide at 1600 °C. It also occurs in nature as the mineral chromite, though with many impurities.

Uses

Chromite, a .mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:left}.mw-parser-output sub.template-chem2-sub{font-size:80%;vertical-align:-0.35em}.mw-parser-output sup.template-chem2-sup{font-size:80%;vertical-align:0.65em} FeCr2O4 containing mineral ChromiteUSGOV.jpg
Chromite, a FeCr2O4 containing mineral

It is used as a commercial source of chromium and its compounds. [1] It is also used as a catalyst in the synthesis of hydrogen (H2) from the reaction between carbon monoxide and water vapor.

Safety

Its dust particles may cause irritation; inhalation and ingestion of its dust should be avoided. Swallowing larger amounts may cause injury.

References

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