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Sodium Tripolyphosphate

Update: 2013/10/14 View:
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Introduction
 

Chemical Name:

Sodium Tripolyphosphate

Molecular Formula:

Na5P3O10

Molecular Weight:

367.86

CAS:

7758-29-4

Character:

White powder, surface density: 0.35-0.9g/cm3, melting point:622℃, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.

Uses:

Tanning agent for leather making, auxiliary for dyeing. As an oil contamination resistance agent in paper production. In foodstuff industry it is used as quality improver in the process of canned food, fruit juice drinks, foodstuffs from milk or soybeans. It may tender the meat in canned ham and soften the skin of horse bean in canned horse bean. It may also serves as a softener or densifier in foodstuff industry.

Packing:

It is packed with polythene bag as the inner layer, and a compound paper- plastic woven bag as the outer layer. The net weight of each bag is 25kg.

Quality index:

  Name of index

GB25566-2010

FCC-V

Sodium Tripolyphosphate ≥%

85.0

85.0

P2O5                    ≥%

56.0-58.0

-

Fluoride (as F)         ≤%

0.005

0.005

Arsenic (As)            ≤%

0.0003

0.0003

Heavy Metal (as Pb)     ≤%

0.001

-

Chloride (as Cl)        ≤%

-

-

Sulfate (as SO42-)      ≤%

-

-

Water Insoluble         ≤%

0.1

0.1

pH (1% aqueous solution)    

9.5-10.0

-

Whiteness              ≥%

-

-

Pb                     ≤%

0.0004

0.0002