Sodium Tripolyphosphate(STPP)

1.free soluble in water, aqueous solution appears acid. 2.LC payment. 3. SGS inspection 4. ISO 9001:2008

STPP  94% industrial grade

 

1.characters:

 

CAS NO :7758-29-4

Appearance :White powder 

Molecular Formula :Na5P3O10

Molecular Weight :367.86413

2.specification:

Na5P3O10	94.0%Min
P2O5	57.0%Min
Water Insoluble Matter	0.15%Max
Iron(Fe)	0.012%Max
PH Value(1% water solution)	9.1-10.0
Ignition Loss	1.0
Whiteness	90%Min
Density(g/cm3)	0.35-0.9
Phase I	10-30

3.use:

1). Technical grade: Used in such industries as oil field, paper-making, textile, dyeing, petrochemical industry, tanning industry, metallurgical industry and building material industry, and used as a water softening agent in solution for printing, dyeing, and boiler, as diffusant in papermaking; Retarding agent, floating agent, dispersing medium, high temperature agglomerant, detergent and soil analytical chemical reagent; 

2). Food grade: Mainly used as additive agent, pH adjusting agent, fermenting agent, and nourishment, etc.

4.package:

Plastic-woven sack with polythene inner bag; Net weight 25kg, 50kg or 1000kg; keep away from water or moisture, do not pile up in the open air

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Sodium Tripolyphosphate(STPP)