SDS Volume (2857)
Volume 66. Ammonium Phosphates, p None
Original Measurements
Sorina, G. A.; Bezlyudova, L. T.; Mushkina, E. V.; Kozlovskaya, G. M.; Tsekhanskaya, Yu. V.; Zh. Prikl. Khim. 1987, 57, 947.
Variables:
Temperature and composition at the mole ratio of N/P2O5 = 1.
Prepared by:
Method/Apparatus/Procedure:
A visual polythermic method was used. The density was measured by the use of a self-constructed pycnometer. Viscosity was measured with a standard capillary VPZH-2 viscometer (solutions more dilute than 50 %) or a viscometer according to Golubev [1].
Source and Purity of Materials:
- Chemically pure salts and distilled water were used.
Estimated Errors:
Ambient temperature: Precision of temperature of disappearance of last crystal was ±0.1 K; of density was ±0.310 g/cm3; of viscosity was ±2% (concn< 50%) and ±7% (more concd solns).
Mass concentration (m/v) (1): No information is given.
References
1 Golubev, I. F.; Potikhova, T. M.; Tr. GIAP, Moscow, ONTI 1971, pp 67-80.
Components:
- Ammonium dihydrogenphosphate, $\ce{ NH4H2PO4 }$; [7722-76-1] NIST WebBook
- Ammonium nitrate, $\ce{ NH4NO3 }$; [6484-52-2] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Remarks: Two sets of data are given.
The compiler has calculated the following data:
| 100w2 | 100w1 | 100w3 | m2 (mol/kg) | m1 (mol/kg) |
|---|---|---|---|---|
| 17.6 | 12.4 | 70.0 | 3.14 | 1.54 |
| 19.7 | 13.9 | 66.4 | 3.70 | 1.82 |
| 21.7 | 15.4 | 62.9 | 4.32 | 2.12 |
| 24.0 | 16.9 | 59.1 | 5.07 | 2.49 |
| 26.3 | 18.5 | 55.2 | 5.94 | 2.92 |
| 28.7 | 20.2 | 51.1 | 7.01 | 3.44 |
| 31.2 | 22.0 | 46.8 | 8.32 | 4.09 |
| 33.7 | 23.8 | 42.5 | 9.9 | 4.87 |
(a) These data were calculated by the compiler.
