Detergent Grade Sodium Tripolyphosphate(STPP):
1. Synonym: pentasódico trifosfato; tripolyfosfato de sodio; STPP;Pentasodium triphosphate, Pentasodium Triphosphate; Pentasodium Tripolyphosphate; Sodium Phosphate Tripoly; Sodium Triphosphate; Sodium Tripolyphosphate; Stpp; Triphosphoric Acid, Pentasodium Salt
Chemical Formula : Na5P3O10Molecular Weight : 367.86CAS No. : 7758-29-4
Appearance : White Powder
2.Property :
White powder; Melting point 622 °C ; Easily soluble in water; It has got salient chelating capacity to metal ions of Ca and Mg etc. and can soften hard water to make suspension into solution,alkalinity, without causticity .
3.Specifications :
Na3P3O10 % | ≥94 |
P2O5 % | ≥57.0 |
Water insoluble matter % | ≤0.10 |
Fe % | ≤0.006 |
Whiteness % | ≥90 |
PH | 9.2--10.0 |
Granularity % | ≤5.0 |
Apparent density g/cm3 | 0.6-1.0 |
Phase-I % | 5-21 |
4.Packing : In 25Kg WPP/PE bags or as per customer demand.
5.Application: Used as one of the main auxiliaries for synthetic detergent, synergist for soap; water softener
Detergent Grade Sodium Tripolyphosphate(STPP)