Specific properties of sodium tripolyphosphate

White knot powder, melting point 622 ℃, soluble in water, the metal ions Ca2 +, Mg2 + has a very significant chelating ability, hygroscopic. Performance density 0.35-0.90g/cm3, melting point 622 ℃. Soluble in water, alkaline aqueous solution, 1% aqueous solution PH 9.7. Gradually hydrolyzed in water to a phosphite, a good ability to complex metal ions. With calcium, magnesium, iron and other metal ions, form soluble complexes. Can soften hard water. As an inorganic surface active agents, organic surfactants having certain properties.

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