Molecular Formula:Na5P3O10 Molecular Weight:367.86 CAS:7758-29-4 Character:White powder, surface density: 0.35-0.9g/cm3, melting point:622, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent. Quality index Specification QB1034-91 Assay (as Na5P3O10Â )% Assay Na5P3O10 94.0 Phosphorus pentoxide% P2 O 5 57.0 Water insoluble matter% Insoluble In Water 0.05 Fe% Iron(Fe) 0.015 PH value( 1% Water soluble matter) PH Value (1% Water Solution) 9.510.0 Heavy Metal (as Pb )% Heavy Metals (as Pb) 0.001 As % Arsenic(As) 0.0003 Fluoride (as F )% Fluoride (F) 0.003 Whiteness % Whiteness 85 Assay of I type Phase I 1030 Chloride % Chloride 0.025 Sulphates% Sulphate 0.4 Uses: Tanning agent for leather making, auxiliary for dyeing. As an oil contamination resistance agent in paper production. In foodstuff industry it is used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans. It may tender the meat in canned ham and soften the skin of horse bean in canned horse bean. It may also serves as a softener or densifier in foodstuff industry. Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.