Chemical Formula: Na5P3O10
Molecular Weight: 367.88
Property:  white powder, easily soluble in water.

Sodium Tripolyphosphate---Food Grade
Spec:
Main Content:  90%min
P2O5:  57%min
Iron:  0.015%max
Water Insolubles:  0.1%max
pH of 1% solution:  9.2-10.0
Chloride:  0.5%max
Arsenic: 0.0003%max