Sodium Tripolyphosphate (Tech Grade)

Product name:  Sodium Tripolyphosphate (Tech Grade)

CAS No.: 7758-29-4

Specification: Tech Grade
Main content: 94% min. 
P2O5: 57%min. 
PH Value: 9.2-10
Water insoluble: 0.1%max
Fe: 100ppmMax 
Whiteness: 90%min
Phase: 40max
Appearance: white powder, crystal powder

Description: STPP or sodium triphosphate is an inorganic compound with formula Na5P3O10. STPP,Sodium Tripolyphosphate  is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. Sodium tripolyphosphate is produced by heating a stoichiometric mixture of disodium phosphate, Na2HPO4, and monosodium phosphate, NaH2PO4, under carefully controlled conditions. 

Applicaiton: The majority of STPP Sodium tripolyphosphate is consumed as a component of commercial detergents. Other uses include "ceramics (increase viscosity of the glazes upto a certain limit), leather tanning (as masking agent and synthetic tanning agent - SYNTAN), anticaking, setting retarders, flame retardants, paper, anticorrosion pigments, textiles, rubber manufacture, fermentation, antifreeze."STPP is used as a polyanion crosslinker in polysaccharide based drug delivery.

Shipping: Prompt

Packaging: n.w. 25kgs/50kgs/1,000kgs plastic-lined woven bags.