Iron(III) chromate
Iron(III) chromate is the iron(III) salt of chromic acid with the chemical formula Fe2(CrO4)3.
| Names | |
|---|---|
| IUPAC name
iron(III) chromate | |
| Identifiers | |
| ECHA InfoCard | 100.030.588 |
PubChem CID |
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| UNII | |
| Properties | |
| Fe2(CrO4)3 | |
| Molar mass | 459.6808 g/mol |
| Appearance | yellow powder |
| reacts, see also solubility chart | |
| Hazards | |
| Main hazards | highly toxic (contain Cr(VI)) |
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 | |
Discovery
Iron(III) chromate was discovered by Samuel Hibbert-Ware in 1817 while visiting Shetland.[2]
Production
It may be formed by the reaction of potassium chromate and iron(III) nitrate. This reaction forms iron(III) chromate and potassium nitrate. It also can be formed by the oxidation by air of iron and chromium oxides in a basic environment:
- 4 Fe2O3 + 6 Cr2O3 + 9 O2 → 4 Fe2(CrO4)3
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References
- Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, Florida: CRC Press. pp. 4–63. ISBN 0-8493-0594-2.
- http://archives.li.man.ac.uk/ead/search?operation=summary&rsid=998&firstrec=1&numreq=20&highlight=1&hitposition=0
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