Compilation - Ammonium dihydrogenphosphate with Diammonium hydrogenphosphate and Water (IUPAC SDS Volume 66)
SDS Volume (2886)
Volume 66. Ammonium Phosphates, p None
Original Measurements
Chomjakow, K.; Jaworowskaya, A.; Schirokich, P.; Z. Phys. Chem. 1933, 167A, 35.
Variables:
Room Temp: Composition at 23 °C
Prepared by:
Method/Apparatus/Procedure:
The solubility was found graphically from the plot of density vs composition.
Source and Purity of Materials:
- All materials were from de Haen or Kahlbaum and were purified twice, pulverized, and dried in vacuum before being used.
Estimated Errors:
Ambient temperature: No information is given.
Mass concentration (m/v) (1): No information is given.
Components:
- Ammonium dihydrogenphosphate, $\ce{ NH4H2PO4 }$; [7722-76-1] NIST WebBook
- Diammonium hydrogenphosphate, $\ce{ (NH4)2HPO4 }$; [7783-28-0] NIST WebBook
- Ammonium dihydrogenphosphate, $\ce{ NH4H2PO4 }$; [7722-76-1] NIST WebBook
- Diammonium hydrogenphosphate, $\ce{ (NH4)2HPO4 }$; [7783-28-0] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Solubility of ammonium phosphates in water at 23°C.
| 100w1 | 100w2 | m1 (mol/kg) |
|---|---|---|
| 28.3 | 71.7 | 3.43 |
| 41.1 | 58.9 | 5.28 |
(a) These values were calculated by the compiler.
