Recommeded Uses: Fertilizer; Polyphosphates, soil stabiliser, detergents, pharmaceutical chemicals, activated carbon, animal feed, cermaics, food additive, food processing, soap, rust inhibitors, wax & rubber latex; also used in electropolishing, engraving and photoengraving, printing, opal glasses, cotton dying metal cleaing, sugar refining and water treatment. Petrol additive, soft drinks and laboratory reagents.