Sodium Tripolyphosphate Tech grade 1.Formula:Na5P3O10 Appearance:White odorless granule or powder 2.Usage:Chiefly used as a water softener,sequestering agent,and defloculating agent in detergentindustry. Also used in ceramic,mine,petroleum and paper manufacturing industries. 3.Specifications: Na5P3O10 94%Min P2O5 57.0%Min Water insoluble: 0.10%Max Fe: 100ppm Max PH: 9.2-10 Phase I: A:5-20% B:21-40% C:40% Density: Light:0.35-0.5g/cm3; Medium:0.51-0.65g/cm3 Dense:0.66-1.0g/cm3 Whiteness: 85%Min Fast hydrating grade available 4.Packing:25kg,50kg waterproof PPbags or paper bags.