| Melting point |
243-245 °C |
| Density |
1.064 g/mL at 20 °C |
| bulk density |
880kg/m3 |
| vapor density |
4.9 (vs air) |
| vapor pressure |
0Pa at 20℃ |
| FEMA |
2398 | DISODIUM PHOSPHATE |
| storage temp. |
Store at +5°C to +30°C. |
| solubility |
H2O: 0.5 M at 20 °C, clear, colorless |
| form |
powder |
| color |
White |
| PH |
8.9-9.2 (25℃, 50g/L in water) |
| pka |
(1) 2.15, (2) 6.82, (3) 12.38 (at 25℃) |
| Odor |
odorless |
| biological source |
synthetic |
| Water Solubility |
>=10 g/100 mL at 20 ºC |
| Sensitive |
Hygroscopic |
| λmax |
λ: 260 nm Amax: 0.019 λ: 280 nm Amax: 0.016 |
| Merck |
14,8659 |
| Stability |
Stable. Incompatible with strong acids. Hygroscopic. |
| Major Application |
PFAS testing |
| Cosmetics Ingredients Functions |
FRAGRANCE ANTICORROSIVE BUFFERING |
| Cosmetic Ingredient Review (CIR) |
Sodium Phosphate, Dibasic (7558-79-4) |
| InChI |
1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2 |
| InChIKey |
BNIILDVGGAEEIG-UHFFFAOYSA-L |
| SMILES |
[Na+].[Na+].[H]OP([O-])([O-])=O |
| LogP |
-2.15 |
| CAS DataBase Reference |
7558-79-4(CAS DataBase Reference) |
| EPA Substance Registry System |
Disodium phosphate (7558-79-4) |
| Absorption |
≤0.01 at 260nm ≤0.01 at 280nm |