Sodium Tripolyphosphate - Stpp

Following are the details of Sodium Tripolyphosphate - STPP:
Molecular Formula: Na5P3O10
Molecular Weight: 367.86 EINECSi 231-838-7
CAS No.: 7758-29-4
Appearance: White powder

1. Specification of Sodium Tripolyphosphate - STPP :
Content: 94% MIN.
P2O5 Content: 57%MIN.
Whiteness: 88%MIN.
Insoluble matter: 0.1%MAX.
Fe: 70PPM MAX.
Size: Residue on 1.00 test sieve 5.0%MAX.
Loss on ignition (500): 1% MAX.
PH value (1% solution): 9.2-10.0
Bulk density(g/cm3): 0.65-0.99
Phase: 10-30%

2. Usage:
It is used as one of the main auxiliaries for synthetic detergent, synergist for soap. Water softener, tanning agent for leather making, auxiliary for dyeing. As an effective dispersion agent for suspension solutions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc. As an oil contamination resistance agent in paper production.

In foodstuff industry it is used as quality improver in the process of 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.

3. Package : 25kg/bag, 24MT/20' FCL.