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