Molecular Formula: Na3PO4 Molecular Weight: 163.97 Properties : White powder, easily soluble in water, easily absorb moisture in the air. Uses: Mainly used in softening water, daily-use chemicals, color fixing, enamel, leather degreasing; Also as catalyst, stabilizer and antiknock agent, etc. Packing and storage : 25kg bags, stored in draughty, dry and clean place, avoid moisture. Standard executed: Reference standard Item Industrial Grade Assay (Na3PO4), %≥ 98.0 Phosphorus pentoxide, % ≥ 41.5 pH (1% water solution) 11.5-12.5 Water insoluble, %≤ 0.10 Fineness (60 meshes sieve ), %≥ 90.0 Loss on Drying, %≤ 2.0