... as syndet adjuvant,soap synergist...... Product Name: sodium tripolyphosphate (STPP)Chemical formula: Na5P3O10Molecular weight: 367.86Standard executed: GB9983- ... P2O5)% ≥57.056.555.0Water insoluble matter %≤0.100.100.15Fe%≤0.0070.0150.030PH9.2--10.0Whiteness %≥908070Granularity( ... test sieve)%≤5.0Properties: white powder, apparent density:0.35-0.90g/ml, melting point: 622degree, easily dissolving in ...