PRODUCT NAME FERROUS SULPHATE HEPTAHYDRATE -IP/BP
Chemical formula  FeSO4.7H2O
Molecular weight    278.02
Standard pack size 25 KG. PAPER BAG / 50 KG. HDPE BAG
Retest period 5 Years from the date of manufacture
Application  
Sr. No.TESTSPECIFICATIONREFERENCE
1.DescriptionBluish green crystals or light green, crystalline powder; odorless. Efflorescent in air. On exposure to moist air, the crystals rapidly oxidize and become brown.IP
2.SolubilityVery Soluble in Boiling water, Freely Soluble in Water, Practically insoluble in ethanol (95%)IP
3.IdentificationGives reaction  A of ferrous salts and reaction  of sulphateIP
4.pHBetween 3.0 to 4.0 Determined in 5% w/v SolutionIP
5.Clarity of solutionThe solution is not more opalescent than opalescence standard OS2IP
6.ArsenicNot more than 2 ppmIP
7.CopperNot more than 50 ppm.IP
8.Lead                          Not more than 50 ppm.IP
9.ZincNot more than 500 ppmIP
10ManaganeseNot more than 0.1%.IP
11.ChlorideNot more than 250 ppmIP
12.AssayNLT 98.0% & NMT 105.0%IP
Sr. No.TESTSPECIFICATIONREFERENCE
1.DescriptionLight green, crystalline powder or bluish green crystal, efflorescent in air.BP
2.SolubilityFreely soluble in water , very soluble in boiling water, practically insoluble in ethanol (96%).It is oxidised in moist air becoming brown.BP
3.Identification(A) It gives reaction of sulphates. (B) It gives reaction  (a) of  iron (C)It complies with the limits of the assayBP
5.pHBetween 3.0-4.0BP
4.ChloridesMaximum  200 ppmBP
5.Chromium  Maximum  50 ppmBP
6.CopperMaximum  50 ppmBP
7.Ferric ion                    Maximum 0.3%.BP
8Manganese                      Maximum 0.1%.BP
9Nickel    Maximum  50 ppmBP
10Zinc           Maximum 50 ppm.BP
11Assay                NLT 98.0% & NMT 105.0%.BP