Sodium phosphate dibasic - S9763
Code: S9763
Sodium phosphate dibasic
ACS Reagent, ≥99.0%
sec-Sodium phosphate; Disodium hydrogen phosphate; Disodium phosphate; Sodium hydrogenphosphate
≥99.0%, ACS Reagent
CAS Number: 7558-79-4
Linear Formula: Na2HPO4
Molar Mass: 141.96 g/mol
EC Number: 231-448-7
MDL Number: MFCD00003496
| Property |
Value |
| Assay |
min. 99.0 % |
| PH (5 %, 25 °C) |
8.7 - 9.3 |
| Loss on drying (105°C) |
max. 0.2 % |
| Water insoluble matter |
max. 0.01 % |
| Iron (Fe) |
max. 20 ppm |
| Heavy metals (as Pb) |
max. 0.001 % |
| Chloride (Cl) |
max. 20 ppm |
| Sulfate (SO4) |
max. 50 ppm |
| Property |
Value |
| PKa (25 °C) |
(1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) |