Synonyms: Ammonium ferrous sulfate hexahydrate, Ammonium iron(II) sulfate, Mohr’s salt, Ammonium iron(II) sulfate hexahydrate
CAS: 7783-85-9
Molecular Formula: Fe(NH4)2(SO4)2 · 6H2O
Molecular Weight: 392.14 g/mol
TestSpecification
DescriptionPale-green mixture of fine crystals & larger regular pieces
Assay [Fe(NH4)2(SO4)2 · 6H2O]98.5 to 101.5%
Calcium (Ca)0.005% max.
Copper (Cu)0.003% max.
Magnesium (Mg)0.002% max.
Ferric Iron (Fe+3)0.01% max.
Insoluble Matter0.01% max.
Manganese (Mn)0.01% max.
pH of 5% Solution at 25°C3.0 to 5.0
Potassium (K)0.002% max.
Sodium (Na)0.02% max.
Phosphate (PO4)0.003% max.
Zinc (Zn)0.003% max.
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