Magnesium chromate
Identifiers | |
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13423-61-5 | |
ChemSpider | 55507 |
Jmol 3D model | Interactive image |
PubChem | 61599 |
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Properties | |
CrMgO4 | |
Molar mass | 140.30 g·mol−1 |
Vapor pressure | {{{value}}} |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references | |
Magnesium chromate is a chemical compound, with the formula MgCrO4. It is a white or brownish, odorless, water-soluble solid with several important industrial uses. This chromate occurs naturally as a spinel, or can be manufactured as a powder.
Contents
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 suspected carcinogen, and can cause acute and dermititis, and possibly kidney and liver damage if inhaled, so it should be treated as a hazardous waste.[8]
References
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