Sodium triphosphate (STP, sometimes STPP or sodium tripolyphosphate or TPP,[1]) is an inorganic compound with formula Na5P3O10. It is the sodium salt of the polyphosphate penta-anion, which is the conjugate base of triphosphoric acid. It is produced on a large scale as a component of many domestic and industrial products, especially detergents. Environmental problems associated with eutrophication are attributed to its widespread use.
White powder or granular; Easily soluble in water; It has got salient chelating capacity to Ca and Mg ions. 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.
Application:
Industrial grade: Used as Cleaning products additives, can also be used for petroleum , metallurgy , mining, paper-making and water treatment etc.
In foodstuff industy , mainly used as quality improving agent for meat foodstuffs , canned meat foodstuffs , milk product, bean-milk ; in personal tending and protection , used as additive of cleaning and washing products .
Package:
25KG double inner plastic and outer knitting bag
Specification:
Industrial grade: conformity to GB9983-2004
Food grade: conformity to qb1034-91
3 Technical Specifications
Indexes
Tech Grade
Assay Na5P3O10 % ≥
94.0
P2O5 % ≥
57.0
Water Insoluble Matter %≤
0.05
Iron(Fe) %≤
0.01
PH value (1% water solution)
9.5-10.0
Heavy Metal (as Pb) %≤
0.001
Arsenic (As) %≤
0.0003
Particle Size
Through 16 mesh sieve %≥
Through 35 mesh sieve %≥
Trough 100 mesh sieve %≥
95
90
40
Whiteness %≥
90
4 Safety Condition
Risk Statements:
R36/37/38
Safety Statements:
S24/25
Storage
Keep away from water or moisture, do not pile up in the open air.
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