Iron(III) sulfate

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.

Iron(III) sulfate
Names
IUPAC name
Iron(III) sulfate
Other names
Ferric sulfate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.030.054
PubChem CID
RTECS number
  • NO8505000
UNII
  • InChI=1S/2Fe.3H2O4S/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6 Y
    Key: RUTXIHLAWFEWGM-UHFFFAOYSA-H Y
  • InChI=1/2Fe.3H2O4S/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6
    Key: RUTXIHLAWFEWGM-CYFPFDDLAR
SMILES
  • [Fe+3].[Fe+3].[O-]S(=O)(=O)[O-].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O
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)
 1.814 (anhydrous)
1.552 (nonahydrate)
Hazards
NFPA 704 (fire diamond)
1
0
0
Lethal dose or concentration (LD, LC):
LD50 (median dose)
 500 mg/kg (oral, rat)
NIOSH (US health exposure limits):
REL (Recommended)
 TWA 1 mg/m3
Related compounds
Other anions
 Iron(III) chloride
Iron(III) nitrate
Related compounds
 Iron(II) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.