S P E C I F I C A T I O N S

FERROUS  SULFATE  HEPTAHYDRATE  ACS

Synonyms:					Greenvitrol; Iron protosulfate
Ferrous Sulfate Heptahydrate; 
					
CAS No:					7782-63-0
Chemical Formula:				FeSO4 * 7H2O
Formula Weight:				278.01

Description:					Blue-green crystals
Assay:						> 99 %
Melting Point:				~ 65 Deg. C

Insoluble matter:				0.01 % maximum
Chloride (Cl):				0.001 % maximum
Phosphate (PO4):				0.001% maximum

Calcium (Ca):				0.005% maximum
Copper (Cu):					0.005 % maximum
Magnesium (Mg):				0.002% maximum

Manganese	(Mn):				0.05 % maximum
Potassium (K):				0.002% maximum
Sodium (Na):				0.02% maximum

Zinc (Zn):					0.005 % maximum
Ferric Ion (Fe3+):				0.1 % maximum
Aqueous solubility:			48.6 g in 100 ml at 50 Deg. C

Effective Date: 01/15/09