Iron(II) Sulfate 7-hydrate (Reag. USP) for analysis, ACS

Iron(II) Sulfate 7-hydrate (Reag. USP) for analysis, ACS
Content: 25 KGM
Physical Description:
solid
Quality Name: for analysis, ACS
Specification: Minimum assay (Perm.): 99.0%
pH of 5% solution: 3-4

?maximum limit of impurities:
Insoluble matter in H2O: 0.005 %
Chloride (Cl): 0.001%
Nitrogen compounds (as N): 0.001%
Phosphate (PO4): 0.0005 %
Fe(III): 0.1%
As: 0.00004 %

Metals by ICP [in mg/Kg (ppm)]:
Be: 10
Bi: 10
Ca: 50
Cd: 50
Co: 20
Cr: 80
Cu: 10
Hg: 10
K: 20
Mg: 20
Mn: 300
Mo: 10
Na: 20
Ni: 50
Pb: 5
Sr: 10
Ti: 10
Zn: 20