Iron(II) chromite
Appearance
Names | |
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IUPAC name
Iron(2+) chromite
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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)
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2.16 |
Structure | |
cubic | |
Hazards | |
GHS labelling: | |
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H317 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Iron(II) chromite is an inorganic compound with the chemical formula FeCr2O4.
Preparation
[edit]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
[edit]![](https://upload.wikimedia.org/wikipedia/commons/thumb/4/42/ChromiteUSGOV.jpg/220px-ChromiteUSGOV.jpg)
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
[edit]Its dust particles may cause irritation; inhalation and ingestion of its dust should be avoided. Swallowing larger amounts may cause injury.
References
[edit]- ^ University of Akron Chemical Database Archived 2012-12-15 at archive.today