Sodium Tripolyphosphate STPP

Chemical formula:Na5P3O10

Molecular weight:367.86

Properties: White powder, surface density: 0.35-0.9g/cm3,  melting point:622℃, free soluble in water, aqueous solution appears acid. It is a kind of inorganic surface active agent.

 

Commodity: 94%min STPP Sodium Tripolyphosphate

Molecular formula: Na5P3O10

 

Na5P3O10% ≥ 94% 

P2O5%    ≥ 57%

Whiteness ≥ 92%

Fe%     ≤0.015%

Water insoluble matter ≤0.15%

PH value(1% water solution)  9.2-10.0

 

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