Magnesium chromate is a chemical compound, with the formula MgCrO4. It is a yellow, odorless, water-soluble salt with several important industrial uses. This chromate can be manufactured as a powder.
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| Names | |
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| Other names
Magnesium chromate(VI) Magnesium monochromate Magnesium monochromate(VI) | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.033.204 |
PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| MgCrO4 | |
| Molar mass | 140.297 g·mol−1 |
| Appearance | Yellow solid |
| soluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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History
Before 1940, the literature about magnesium chromate and its hydrates was sparse, but studies starting in that year looked at its properties and solubility.[1]
Uses
It is available commercially in a variety of powders, from nanoscale to micron-sized, either as an anhydrous or hydrated form.[2][3]
As a hydrate, it is useful as a corrosion inhibitor and pigment,[4] or as an ingredient in cosmetics.[5] In 2011, an undecahydrate (containing 11 molecules of water) of this compound was discovered by scientists at the University College London.[6]
Hazards
Magnesium chromate hydrate should be stored at room temperature, and there is no current therapeutic use.[7] It is a confirmed carcinogen, and can cause acute dermititis, and possibly kidney and liver damage if inhaled, so it should be treated as a hazardous waste.[8]
References
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