Specification :

Sodium Tripolyphosphate ( STPP)
1, Sodium Tripolyphosphate ( STPP)
2, CAS No.: 7758-29-4
3, HS Code: 28353100
4, Type: STPP 94% min Tech Grade
Properties: White powder, surface density: 0.35-0.9g/ cm3, melting point: 622C, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.
Application:
1, Used as one of the main auxiliaries for synthetic detergent, synergist for soap; Water softener, tanning agent for leather making, auxiliary for dyeing;
2, As an effective dispersion agent for suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc.;
3, As an oil contamination resistance agent in paper production.

Specification:
Re: STPP Tech Grade 94% min

Appearance: White Powder

Na5P3O10: 94.0% Min

P2 O 5: 57.0% Min

Water Insoluble Matter: 0.10% Max

Iron( Fe) : 0.007% Max

PH value ( 1% water solution) : 9.2-10.0

Whiteness : 88% Min

Ignition: loss 1.0

density ( g/ cm3) : 0.65-0.99

Phase I: 10-30

Packing: 25kg/ bag, 22MT/ 20’ FCL