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- Sodium Tripolyphosphate STPP -

Executive Standard: QB1034-91                                        
Molecular Formula: Na5P3O10
MW: 367.86                            
Character:  
It is white powder. Byname is Pent-sodium Phosphate. Melting point is 622°C.It is easily soluble in water. it has salient chelating capacity to ions of Ca, Mg etc. and can soften the hard water to make suspension become into the clear solution.It has weak alkalinity but no corrosiveness. It is a surfactant which has outstanding emulsification for 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 kinds of crystalline forms, namely Type I (the type of high temperature) and Type II (the type of low temperature). The chemical characters of the two types are the same, and the difference between them lies in the thermo stability.
Package: 25kgs woven bag lined with plastic bag, according to the customer’s demand , Stored at draughty dry places..
Usage:
1,  Used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans.
2,  It may tender the meat in canned ham and soften the skin of horsebean in canned horsebean.
3,  It may also serves as a softener or densities in foodstuff industry.

Sodium Tripolyphosphate STPP

Performed  Specifications:

Specifications

Food Grade

Main content % ≥

94.0

P2O5 % ≥

57.0

Water Insoluble % ≤

0.05

SO4 % ≤

0.40

PH Value of 1% water solution

9.5-10.0

Heavy metal, as Pb % ≤

0.001

Arsenic, as As % ≤

0.0003

 Fluoride, as F % ≤

0.003

Whiteness % ≥

90


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