Sodium Tripolyphosphate

Sodium Tripolyphosphate
Na₅P₃O₁₀
Sodium tripolyphosphate (STPP) — is widely used as a component for the production of synthetic detergents, water treatment, as well as in the ceramic, paint, varnish and other industries. We produce 15 technical STPP grades of powder and granular type.
CAS №: 7758-29-4
HS Code: 28353100
Classification:Phosphate
Type:SODIUM TRIPOLYPHOSPHATE
CAS No.:7758-29-4
Other Names:sodium tripolyphosphate
MF:Na5P3O10
EINECS No.:231-838-7
Appearance :white powder
Melt Point : 622 ®C
DENSITY : 2.52 g/cm3 (20℃)
PH:9.0-10.0 (25℃, 1% in H2O)
Storage: Cold Dry Place


package:25kg/bag ,22MT/20fcl

Items Index Results
Na5P3O10 94% min Comply
P2O5 57%min 98.8
Water Insoluble 0.10%max 19.9
Iron (Fe) 0.01%max 8.9
Ph (1% Solution) 9.2 ∽10.0 0.015
Whiteness 90%min 0.015
Finess: Passing through 0.5 Trv-sieve 90%min 0.0002
Bulk density 0.8-1.0g/cm3 0.0002
Phase I 10-40
Appearance White powder
Specification:

Description:
White powder or powder, apparent density 0.35-0.90g/cm3, melting point 622 ℃. soluble in water. The aqueous solution is alkaline, and the pH of 1% aqueous solution is 9.7. It is gradually hydrolyzed into phosphite in water and has a good ability to complex metal ions. It can complex with calcium, magnesium, iron and other metal ions to form soluble complexes. Can soften hard water. As an inorganic surfactant, it has the properties of a certain organic surfactant.