Sodium Tripolyphosphate

STPP Chemical formular: Na5P3O10; purity: 96%; Application: mainly used as syndet adjuvant,soap synergist...... Product Name: sodium tripolyphosphate (STPP)

Chemical formula:  Na5P3O10

Molecular weight: 367.86

Standard executed: GB9983-2004

Technical Specifications:

Specifications	Superior quality	First-grade	Qualified products
Sodium Tripolyphosphate(Na5P3O10)% ≥	96	90	85
Phosphorus Pentoxide(P2O5)% ≥	57.0	56.5	55.0
Water insoluble matter %≤	0.10	0.10	0.15
Fe%≤	0.007	0.015	0.030
PH	9.2--10.0
Whiteness %≥	90	80	70
Granularity(tailover through 1.00mm test sieve)%≤	5.0

Properties: white powder, apparent density:0.35-0.90g/ml, melting point: 622degree, easily dissolving in water; water solution is alkaline(PH value of 1% solution is 9.7); can hydrolyze into phosphate in water, has good ability in complexing metal ions,; can be used to soften water; has some surfactant properties.

Application: mainly used as syndet adjuvant, soap synergist and prevent bar soap from oiling off and blooming; has strong emulsification on lubricant and oils and fats, can be used to adjust the PH value of buffer soap solution; can be used as water softener for industrial water, pretanningagent and dyeing adjuvant; drilling mud dispersant; dispersant in preparing suspension in paint, kaolinite, magnesium oxide, calcium carbonate etc.; oil-proofing agent and antifoulant in paper industry.

Packing: n.w. 25kgs/50kgs/1,000kgs plastic-lined woven bags.

Sodium Tripolyphosphate