STPP 94% tech grade Sodium tripolyphosphate

Property
As a chained condensation compound of phosphate soluble in water, it has two existing forms: Na5P3O10(Anhydrous) and Na5P3O10•6H2O(Crystal). The specific gravity of Na5P3O10•6H2O is 2.12, that of Na5P3O10 is 0.5-0.6, melting point for both is 622°C. Anhydrous Na5P3O10 is capable of absorbing humidity with its aqueous solution being alkalinity and will be hydrolyzed to ortho-phosphates; It can have emulsification, suspension and dispersion of mud and oil; it has strong buffering effects with PH value between 4.3-14.
Molecular Formula: Na5P3O10
Molecular Weight: 368
CAS No.: 7758-29-4
SpecificationItemTech gradeSodium Tripolyphosphate (Na5P3O10)94% MinPhosphorus Pentaoxide (P2O5)57.0% MinInsoluble Matter In Water0.10% MaxFerrum(Fe)0.015% MaxPH Value (1% solution)9.2 - 10.0Whiteness90% MinBulk Density (g/cm3)0.5 – 1.0Prase I20-40Usage
As main synthetic detergent builder, as soft water agent, as detergent building foaming agent, as emulsifier of oils and greases, as peptizing agents as PH buffers, and to provide alkalinity. Used in petroleum industry as peptizing and deflocculation agents in oil well drilling muds, sequestration in cotton boiling, catalyst of organic synthesis bath water g softening, red and black water control, catholic corrosion inhibitor, It can be used in syntheticing rubber and fiber making industries.
Packing
In 25kg plastic woven bag,lined with PE bag.