Sodium Tripolyphosphate

Features Specifications: sodium tripolyphosphate
Chemical formula:Na₅P₃O10
Molecular weight:367.88
Properties:White microdot powder with luster, melting point at 622, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca²⁺, Mg²⁺, can soften hard water, change suspension into solution, slightly alkaline, without causticity
Uses: Mainly used as synthetic detergent ingredient

Item	Standard No	Exact No
Sodium Tripolypyosphate(Na5P3O10),%≥	90.0	94.0
Phosphate(base on P2O5) ,%≥	56.5	57.3
Insoluble substance in water,%≤	0.10	0.07
PH value	9.2-10.0	9.4
Whiteness,≥	85.0	90
Fe,%≤	0.015	0.009