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Ferrous Sulphate (FeSO4.7H2O) (i) Ferrous iron (as Fe) per rent by weight, minimum 19.0 (ii) Free Acid (as H2SO 4), per cent by weight, maximum 1.0 (iii) Ferric Iron (as Fe), percent by weight, maximum 0.5 (iv) Matter insoluble in water, percent by weight, maximum 1.0 (v) pH not less than 3.5 (vi) Lead (as Pb) per rent by weight, maximum 0.003 (vii) Sulphur (asS),percent by weight, minimum 10.5 7 .Ammonium Molybdate (NH4)6MO7O244H2O) (i) Molybdenum (as Mo), per rent by weight, minimum 52.0 (ii) Matter insoluble in water, per cent by weight, maximum 1.0 (iii) Lead (as Pb), per rent by weight, maximum 0.003 50