| Melting point | 622 °C |
| density | 2.52 g/cm3 (20℃) |
| bulk density | 1000kg/m3 |
| vapor pressure | <0.1 hPa (20 °C) |
| refractive index | 1.658 |
| storage temp. | Storage temperature: no restrictions. |
| solubility | H2O: may be clear to slightly hazy |
| form | Powder/Solid |
| color | White |
| Odor | Odorless |
| PH Range | 9.5 - 10.3 at 1 g/l at 20 °C |
| PH | 9.0-10.0 (25℃, 1% in H2O) |
| Water Solubility | 20 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 14,8697 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong acids. Hygroscopic. |
| InChIKey | HWGNBUXHKFFFIH-UHFFFAOYSA-I |
| LogP | -4.691 (est) |
| CAS DataBase Reference | 7758-29-4(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium tripolyphosphate (7758-29-4) |