Sodium Tripolyphosphate (STPP)
CAS No.: 7758-29-4
Molecular formula: Na5P3O10
Appearance: White Powder or Particles
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STPP 96%Min
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Industry Grade
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Food Grade
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Purity (Na5P3O10)% ≥
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96
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96
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P2O5 %≥
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57.00
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57
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Iron (Fe) %≤
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0.01
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-----
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PH of 1% water solution
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9.2-10.0
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9.5-10
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Water insoluble Matter %≤
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0.15
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0.05
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Whiteness
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90
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85
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Sulfate%
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0.4% MAX
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Type I %
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5-40
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10-60
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Density(g/cm3 )
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0.62-0.9
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0.65-0.85
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Pacakge: 25 kgs net kraft paper bag or plastic woven bag, 20 tons in a 20’FCL
Usage: It can be used in food additives. In Industry, it is the main additive in synthetic detergents, soap synergistic agent,industrial water softener, leather pretanning agents, dyeing auxiliaries, oil sludge control agents. Is also a catalyst in organic synthesis as well as for refined petroleum products, pharmaceuticals and synthetic rubber and so on.