Molecular formula: Na5P3O10 Molecular weight: 367.88 Property: white glossy granular powder, soluble in the water, have obviously adjustment capacity to ion of calcium and magnesium. It can soften hard water show weakly alkaline non-corrosive Spec: Items grade A Na5P3O10 94%min P2O5 5657%max insoluble matter in the water 0.10% max ferrous 0.015% max PH value(1% solution) 9.2-10.0 turbid degree 90% min Usage: main assistant agent of compound detergent, soften water agent dye agent catalysis agent of organic combination dispersion agent of refinery of crude oil in the metal and pharmacy industry also have worldwide use in food and compound rubber. Package: plastic woven bag 25kgs or 50kgs net each.