Ammonium Ferric Sulphate 12-hydrate

Identification                         

NH4Fe(SO4)2·12H2O

M = 482,19 g/mol

CAS [7783-83-7]

EC number: 233-382-4

Taric code: 2833 30 00

Synonyms                            

Iron(III) ammonium sulfate, Alum iron, Ferric ammonium alum, Iron alum

Applications                    

analytical chemistry, laboratory reagent.

Packaging

  • 500 g
  • 1000 g

Physical data                                 

  • Appearance: humid crystals, light violet
  • Bulk density: ~ 750 kg/m3
  • Solub. in water: (25 ºC): 1240 g/l
  • Melting point: 39 – 41 ºC
  • pH(100 g/l H2O, 20 ºC) ~ 1,8