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stpp sodium tripolyphosphate

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  • NewFood Food Grade Industrial Best Price Stpp Sodium Tripolyphosphate Powder

    NewFood Food Grade Industrial Best Price Stpp Sodium Tripolyphosphate Powder

    Sodium tripolyphosphate:
    White powder, apparent density 0.35-0.90g/cm3, melting point 622c. Soluble in water. Aqueous solutions are alkaline and 1% aqueous solutions have a PH of 9.7. Hydrolyzed into phosphite in water, it has good complexing ability of metal ions. It can complex with calcium, magnesium, iron and other metal ions to form a soluble complex. It softens hard water. As an inorganic surfactant, it has some properties of organic surfactant.