Names | |
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IUPAC name
Iron(III) sulfate
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Other names
Ferric sulfate
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.030.054 |
PubChem CID
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RTECS number |
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
Fe2(SO4)3 | |
Molar mass | 399.88 g/mol (anhydrous) 489.96 g/mol (pentahydrate) 562.00 g/mol (nonahydrate) |
Appearance | grayish-white crystals |
Density | 3.097 g/cm3 (anhydrous) 1.898 g/cm3 (pentahydrate) |
Melting point | 480 °C (896 °F; 753 K) (anhydrous)(decomposes) 175 °C (347 °F) (nonahydrate) |
256g/L (monohydrate, 293K) | |
Solubility | sparingly soluble in alcohol negligible in acetone, ethyl acetate insoluble in sulfuric acid, ammonia |
Refractive index (nD)
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1.814 (anhydrous) 1.552 (nonahydrate) |
Hazards | |
NFPA 704 (fire diamond) | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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500 mg/kg (oral, rat) |
NIOSH (US health exposure limits): | |
REL (Recommended)
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TWA 1 mg/m3[1] |
Related compounds | |
Other anions
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Iron(III) chloride Iron(III) nitrate |
Related compounds
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Iron(II) sulfate |
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(III) sulfate (or ferric sulfate), is a family of inorganic compounds with the formula Fe2(SO4)3(H2O)n. A variety of hydrates are known, including the most commonly encountered form of "ferric sulfate". Solutions are used in dyeing as a mordant, and as a coagulant for industrial wastes. Solutions of ferric sulfate are also used in the processing of aluminum and steel.[2][3]