Iron(II) chromite
Iron(II) chromite is an inorganic compound with the chemical formula FeCr2O4.
| Names | |
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| IUPAC name
Iron(2+) chromite | |
| Identifiers | |
3D model (JSmol) |
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| ECHA InfoCard | 100.013.782 |
| EC Number |
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PubChem CID |
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| RTECS number |
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CompTox Dashboard (EPA) |
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| Properties | |
| FeCr2O4 | |
| Molar mass | 223.83 g/mol |
| Appearance | Brown-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 |
Refractive index (nD) |
2.16 |
| Structure | |
| cubic | |
| Hazards | |
| GHS pictograms |  |
GHS hazard statements |
H317 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
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 FeCr
2O
4 contaning mineral
2O
4 contaning 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.
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