Iron(II) chromite
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| Iron(II) chromite | ||
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| IUPAC name Iron(2+) chromite | ||
| Identifiers | ||
| CAS number | 1308-31-2 | |
| PubChem | 166600 | |
| EC number | 215-159-3 | |
| RTECS number | GB4000000 | |
| Jmol-3D images | {{#if:[O-2].[O-2].[O-2].[Cr+3].[Fe+3]|Image 1 | |
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| Properties | ||
| Molecular formula | 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 | |
| Solubility in water | insoluble | |
| Refractive index (nD) | 2.16 | |
| Structure | ||
| Crystal structure | cubic | |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Iron(II) chromite is an inorganic compound with the chemical formula FeCr2O4.
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
It is used as a commercial source of chromium and its compounds. [1]
References
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