Specification :

Sodium Tripolyphosphate ( STPP Tech grade) CAS No. 7758-29-4

1.Formula: Na5P3O10
Appearance: White odorless granule or powder

2.Usage: Chiefly used as a water softener, sequestering agent, and defloculating agent in detergent industry.
Also used in ceramic, mine, petroleum and paper manufacturing industries.

3.Specifications:
Na5P3O10 94% Min
P2O5 57.0% Min
Water insoluble: 0.10% Max
Fe: 100ppm Max
PH: 9.2-10
Phase I: A: 5-20%
B: 21-40%
C:  40%
Density: Light: 0.35-0.5g/ cm3;
Medium: 0.51-0.65g/ cm3
Dense: 0.66-1.0g/ cm3
Whiteness: 85% Min
Fast hydrating grade available

4.Packing: 25kg, 50kg, 1000kg LbPW bags or paper bags.

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