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sodium tripolyphosphate(stpp)
sodium tripolyphosphate(stpp)

SODIUM TRIPQLY PHOSPHATE (STPP) Byname:Pent-sodium Phosphate Molecular formula:Na5P3O10 Molecular Weight:367.86

SODIUM TRIPQLY PHOSPHATE (STPP)Byname:Pent-sodium PhosphateMolecular formula:Na5P3O10Molecular Weight:367.86Properties:White powder; Melting point 622 °C ; Easily soluble in water; It has got salient chelating capacity to metal ions of Ca and Mg etc. and can soften hard water to make suspension into solution, alkalinity, without causticity . It is a surfactant, and has got outstanding emulsification to lubricants and fat.

Application:Used as one of the main auxiliaries for synthetic detergent, synergist for soap; water softener, tanning agent for leather making, auxiliary for dyeing; As an effective dispersion agent for suspensions of coatings, kaolin, magnesium oxide, calcium carbonate and drilling mud etc

 

 Packing and storage:In 25Kg or 50 Kg or 1000 Kg net WPP/PE bags. It must be prevented from moisture and water. Don't pile up in the open air.

Technical Data

Indexes

Industrial Grade

Food Grade

Assay Na5P3O10% ≥

94.0

94.0

P2O5% ≥

57.0

57.0

Water Insoluble Matter % ≤

0.15

0.05

Iron(Fe) % ≤

0.015

0.015

PH value (1% water solution)

9.2-10.0

9.5-10.0

Heavy Metal (as Pb) % ≤

 

0.001

Arsenic (As) % ≤

 

0.0003

Fluoride (F) % ≤

 

0.003

Whiteness % ≥

90

90

Ignition loss

1.0

/

density (g/cm3)

0.35-0.9

0.35-0.9

Phase I

10-30

10-30

 

sodium tripolyphosphate(stpp)

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