Ammonium Ferrous Sulfate 6 Hydrate AR
Mol. Formula |
(NH4)2Fe(SO4)2.6H2O |
Mol. weight |
392.14 |
CASR No. |
7783-85-9 |
Appearance |
Pale greenish crystalline powder |
Test solution (10%w/v solution in dist. water+ 1ml H2SO4) |
The solution shall be clear and pale greenish |
Assay |
99 - 101% |
pH (5%w/v solution in dist. water) |
NLT 3.50 |
Maximum limits of impurities |
|
Chloride, as Cl |
0.001% |
Copper, as Cu |
0.002% |
Calcium, as Ca |
0.01% |
Ferric, as Fe+3 |
0.02% |
Substances insoluble in water |
0.003% |
Heavy Metals, as Pb |
0.002% |
Manganese, as Mn |
0.05% |
Potassium, as K |
0.02% |
Sodium, as Na |
0.02% |
Zinc, as Zn |
0.006% |
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