Sodium Tripolyphosphate
Alternate Names: Sodium Triphosphate, STPP
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| Na2O | 42.10% | 0.62 | |
| P2O5 | 57.90% | 0.38 | |
| Oxide Weight | 91.99 | ||
| Formula Weight | 91.99 | ||
Notes
Used as a source of sodium in the glass industry. The reaction is: 2 Na5P3O10 ----> 5 Na2O + 3P2O5
STPP is also used in glazes and engobes as a deflocculant (to reduce water content).
Related Information
Links
| Typecodes |
Flux Source
Materials that source Na2O, K2O, Li2O, CaO, MgO and other fluxes but are not feldspars or frits. Remember that materials can be flux sources but also perform many other roles. For example, talc is a flux in high temperature glazes, but a matting agent in low temperatures ones. It can also be a flux, a filler and an expansion increaser in bodies. |
| Oxides | P2O5 - Phosphorus Pentoxide |
| URLs |
https://en.wikipedia.org/wiki/Sodium_triphosphate
Sodium TriPolyphosphate at Wikipedia |