Ammonium Iron(III) Sulfate 12-hydrate (Reag. USP, Ph. Eur.) for analysis, ACS, I

Ammonium Iron(III) Sulfate 12-hydrate (Reag. USP, Ph. Eur.) for analysis, ACS, ISO
Content: 25 KGM
Physical Description:
solid
Quality Name: for analysis, ACS, ISO
Specification: Assay (Iodom.): 98.5-102.0%

?maximum limit of impurities:
Insoluble matter in H2O: 0.005 %
Chloride (Cl): 0.0005%
Non-precipitated by NH4OH: 0.05 %
Fe(II): 0.001%
Nitrate (NO3): 0.01%
Ca: 0.01 %
Cu: 0.002 %
K: 0.005 %
Mg: 0.001 %
Mn: 0.005 %
Na: 0.01 %
Pb: 0.001 %
Zn: 0.003 %