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Specifications
Tech grade Sodium Tripolyphosphate STPP
1 CAS: 7758-29-4
2 Free samples
3 Grade: Industrial/Food grade
4 SGS/ISO
Tech grade Sodium Tripolyphosphate STPP
1 Chemical Name: Sodium Tripolyphosphate, Sodium Triphosphate
2 M. F: Na5P3O10
3 M. W: 367.86
4 Physical properties:
White microdot powder with luster, melting point at 622 degree centigrade, easily soluble in water, with remarkable chelating ability to some metal ions such as Ca2+Mg2+, can soften hard water, change suspension into solution, alkalescent, without causticity.
5 Quality standard: (QB1034-1991, FCC-IV, GB/T9983-2004)
6 Usage:
Used as moisture conservative. Applied to can, fruit drinks, milk products, vegetable protein drinks, instant noodles, meat products, and so on.
7 Packing: It is packed with PE bags as liner, and a woven bag as the outer layer. The net weight of each bag is 25kg.
8 Storage and transport:
It should be stored in a dry. Ventilative and clean warthouse; Kept away from moisture and hot, Furthermore, it should be stored separately from poisonous Substances.
Name of index | QB1034-1991 | FCC-IV | GB/T9983-2004 |
Sodium Tripolyphosphate ≥% | 95 | 85 | 95 |
P 2 O 5 ≥% | 57 | - | 57 |
Fluoride (as F) ≤% | 0.003 | 0.005 | - |
Arsenic (As) ≤% | 0.0003 | 0.0003 | - |
Heavy Metal (as Pb) ≤% | 0.001 | 0.001 | - |
Chloride (as Cl) ≤% | 0.025 | - | - |
Sulfate (as SO 4 2- ) ≤% | 0.4 | - | - |
Water Insoluble ≤% | 0.05 | 0.1 | 0.05 |
pH (1% aqueous solution) | 9.5 -10.0 | - | 9.5-10.0 |
Whiteness ≥% | 85 | - | 80 |
Pb ≤% | - | 0.0002 | - |