Sodium Tripolyphosphate (tech grade)

Sodium Tripolyphosphate (tech grade) Purity:94% min White powder or granule CAS:7758-29-4 Usage: detergent,ceramic,petroleum Sodium Tripolyphosphate  STPP (TECH GRADE) 

Chemical formula:  Na5P3O10

Molecular weight: 367.86

Standard executed: GB9983-2004

Technical Specifications:

Specifications	Industrial grade
Sodium Tripolyphosphate (as Na5P3O10)% ≥	94
Phosphorus Pentoxide (as P2O5)% ≥	57.0
Water insoluble matter % ≤	0.10
Fe% ≤	0.015
PH value	9.2--10.0
Whiteness % ≥	90
apparent density	0.35-0.9

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.

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