Physical properties: White crystal powder，melting point is 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, alkalescent, without causticity.
Quality standard: (GB25566-2010、FCC-V)
Name of index | GB25566-2010 | FCC-V |
Sodium Tripolyphosphate ≥% | 85 | 85 |
P2O5 ≥% | 56.0-58.0 | - |
Fluoride (as F) ≤% | 0.005 | 0.005 |
Arsenic (As) ≤% | 0.0003 | 0.0003 |
Heavy Metal (as Pb) ≤% | 0.001 | - |
Chloride (as Cl) ≤% | - | - |
Sulfate (as SO42-) ≤% | - | - |
Water Insoluble ≤% | 0.1 | 0.1 |
pH (1% aqueous solution) | 9.5-10.0 | - |
Whiteness ≥% | - | - |
Pb ≤% | 0.0004 | 0.0002 |
Usage: In food industry, it is used as water conservative, applied to can, fruit drinks, milk products, vegetable protein drinks, instant noodles, meat products, and so on.
