F027SF Sodium Tripolyphosphate (STPP) : โซเดียม ไตรโพลีฟอสเฟต
STPP is a preservative for seafood, meats, poultry, and animal feeds. It is common in food production as E number E451.
| CAS Number : | 7758-29-4 |
| Formula : | Na₅P₃O₁₀ |
| Appearance : | White odourless powder |
| P.H. : | 9.5 – 10.1 % |
| Assay : | 90.0 % |
In foods, STPP is used as an emulsifier and to retain moisture. Many governments regulate the quantities allowed in foods, as it can substantially increase the sale weight of seafood in particular.



