Sodium tripolyphosphate STPP

Appearance: White powder or granular.
Molecular Formula: Na5P3O10
CAS NO.: 7758-29-4
grade: food grade industry grade
CAS No：2835319000

Production Introduction:

Sodium triphosphate (STPP or sodium tripolyphosphate) 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 widespreaduse.

Technical Index：

Item	Industrial Grade
Item	Excellent class	First class	Second class
Main contents, w/% ≥	96	90	85
P2O5, w/% ≥	57.0	56.5	55.0
Water insoluble, w/% ≤	0.10	0.10	0.15
Iron (as Fe), w/% ≥	0.007	0.015	0.030
Whiteness, % ≥	90	85	80
PH value(1%solution)	9.2-10.0
Particle size	Through 1.00mm mesh sieve ≥95%
Phase I and bulk density: according to customer's requirements.

Packing：

25kg/weave bag. 1*20 ft loading 21 MT. Without Pallet

Production Application:

1. STPP tech grade is used as additive in detergent synthesis, ceramics production, soap synergist.
2.Has strong emulsifying property to lubricant and fat, to adjust the PH value of buffer liquid soap.
3. Water softener and buffering agent in detergent industry
4. Quality modifier, pH adjustment, water reserving agent and other functions in food industry
5. Paper making
6.Dispersing agent in oil drilling mud
7. Ceramic, mining, water treatment industry and etc.