Specification :

Sodium tripolyphosphate ( STPP) is an inorganic compound. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid.

Molecular formula: Na5P3O10

Molecular Weight: 367.86

CAS Number: 7758-29-4

Properties:
White granule or powder; Melting point 622° C; Easily soluble in water; It has got salient chelating capacity to ions of Ca and Mg etc. and can soften hard water to make suspension solution become into clear solution; It has got weak alkalinity but no corrosiveness. It is a surfactant, and has got outstanding emulsification to lubricants and fat. It has different bulk density, i.e. low density 0.35-0.5g/ cm3, medium density 0.51-0.65g/ cm3 and high density 0.66-0.9g/ cm3. This product has two crystalline forms, namely Type I ( high temperature type) and Type II ( low temperature type) . The chemical properties of the two types are the same, and the difference between them lies in the thermostability, hygroscopicity, solubility and hydration heat when dissolving.

Grade: Technical Grade

Usage:
In detergents
The majority of STPP is consumed as a component of commercial detergents. It serves as a " builder, " industrial jargon for a water softener. In hard water ( water that contains high concentrations of Mg2+ and Ca2+ ) , detergents are deactivated. Being a highly charged chelating agent, TPP5- binds to dications tightly and prevents them from interfering with the sulfonate detergent.[ 5]

Other uses
Other uses include cceramics, leather tanning ( as masking Agent and Synthetic Tanning Agent-SYNTAN) , anticaking, setting retarders, flame retardants, paper, anticorrosion pigments, textiles, rubber manufacture, fermentation, antifreeze

PACKING: 25 Kg or 50 Kg Export Worthy PP Woven or Paper Bag + Inner Plastic Liner.