Sodium Tripolyphosphate (STPP)

Appearance:white powder Formula:Na5P3O10Specification: ItemIndustrial GradeContent94% Min.P2O5 Content57%Min.Whiteness88%Min.Insoluble Matter0.1%Max.Fe70PPM MaxSize: Residue on 1.00 Test Sieve5.0%MaxLoss on Ignition1% Max.PH Value (1% Solution)9.2-10.0Bulk Density (g/cm3)0.65-0.99Phase I10-30%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. an oil contamination resistance agent in paper production.