FERROUS SULPHATE HEPTHAHYDRATE
Specifications
pH (5% of slurry)3.10 (min) 3.10 (min)
Moisture (Percent by Mass)0.50 (max) 0.40 (max)
Iron (Percent by Mass)19.88 (min) 19.90 (min)
Purity as FSH (Percent by Mass)98.70 (min) 98.80 (min)
Ferric Iron (Percent by Mass)0.20 (max) 0.15 (max)
Free Acid (Percent by Mass)0.30 (max) 0.25 (max)
Copperas is also widely used as a coagulant in water treatment chemicals, and as a raw material for iron oxide pigments.