Manganese Sulfate

Manganese Sulte Monohydrate BP Eur Grade

MnSO4-H2O

DEFINITIONContent99.0 per cent to 101.0 per cent (ignited substance).

CHARACTERSAppearancePale pink crystaler, slightly hygroscopic.SolubilityFreely soluble in water, practically insoluble in ethanol (96 per cent).

IDENTIFICATIONA. Solution S (see Tests) gives reaction of sultes.B. Dissolve 50 mg in 5 ml of water. Add 0.5 ml of ammonium sulde solution. A pale pink precipitate is formed which dissolves on the addition of 1 ml of anhydrous acetic acid.C. Loss on ignition (see Tests).

TESTSSolution SDissolve 10.0 g in distilled water and dilute to 100 ml with the same solvent.Appearance of solutionSolution S is not more opalescent than reference suspension.ChloridesMaximum 100 ppm.IronMaximum 10 ppm, determined on solution S.ZincMaximum 50 ppm.Heavy metalsMaximum 20 ppm.Loss on ignition10.0 per cent to 12.0 per cent, determined on 1.00 g at 500 ± 50C.