High purity inorganic chemicals for the pharmaceutical, aerospace, R&D, and electronic industries.

  Barker Reinvents the Possible

Ferric Ammonium Sulfate Dodecahydrate,


Reagent A.C.S.


Appearance: Pale violet crystals
Assay: 98.5-102.0%
NH4Fe(SO4)2 · 12(H2O)
Insoluble matter: 0.01%
Calcium (Ca): 0.01%
Chloride (Cl): 0.001%
Magnesium (Mg): 0.005%
Nitrate (NO3): 0.005%
Sodium (Na): 0.02%
Potassium (P): 0.01%
Copper (Cu): 0.003%
Zinc (Zn): 0.003%
Ferrous iron (Fe++): Passes test