Iron(III) oxide-hydroxide
| Names | |
|---|---|
| IUPAC name
Iron(III) oxide-hydroxide
| |
| Other names
Metaferric acid
Ferric oxyhydroxide Goethite | |
| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.039.754 |
| EC Number |
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| MeSH | Goethite |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| FeO(OH) | |
| Appearance | Vivid, dark orange, opaque crystals |
| Odor | odorless |
| Density | 4.25 g/cm3 |
| insoluble at pH 7 | |
Solubility product (Ksp)
|
2.79×10−39 for Fe(OH)3[1] |
| Hazards | |
| NFPA 704 (fire diamond) |
1
0
0 |
| Pharmacology | |
ATC code
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B03AB04 (WHO) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Iron(III) oxide-hydroxide or ferric oxyhydroxide[2] is the chemical compound of iron, oxygen, and hydrogen with formula FeO(OH).
The compound is often encountered as one of its hydrates, FeO(OH)·nH
2O (rust). The monohydrate FeO(OH)·H
2O is often referred to as iron(III) hydroxide Fe(OH)
3, hydrated iron oxide, yellow iron oxide, or Pigment Yellow 42.
- ^ "Solubility product constants at 25 oC". Archived from the original on 2015-02-26. Retrieved 2015-02-23.
- ^ A. L. Mackay (1960): "β-Ferric Oxyhydroxide". Mineralogical Magazine (Journal of the Mineralogical Society), volume 32, issue 250, pages 545-557. doi:10.1180/minmag.1960.032.250.04