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Washing powder materials

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STPP
Sodium tripolyphosphate

Chemical equation:
Na5P3O10
Density: typeⅠ:2.62g/cm3,typeⅡ:2.57g/cm3
Melting point: 622℃ 
Solubility: Soluble in water, the aqueous solution was alkaline.20g/100mL (20℃)


Details

  • 1
  • Applications


      Used as detergent additives, water retention agent, quality improver, pH regulator, metal chelating agent.

 

  • 2
  • Quality index

 
Appearance white free flowing powder
Project index Top product / First Grade
Whiteness,%  ≥ 90.0 / 85.0 / 80.0
P2O5 content,%  ≥ 40.0 / 38.0 / 30.0                          
Na5P3O10 content,% ≥ 96.0 / 94.0 / 90.0 / 85.0
Insoluble in water,% ≤ 0.10 / 0.15
Impurities content(Fe),%  ≤ 0.007 / 0.015 / 0.030
Ph of 1% solution 9.2~10.0


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