SDS Volume
Volume 66. Ammonium Phosphates, p None
Source Publication
Shenkin, Ya. S.; Ruchnova, S. A.; Shenkina, A. P.; Zh. Neorg. Khim. 1969, 14, 1420.
Conditions:
Temperature and composition at atmospheric pressure.
Compiler:
Methodology:
The method was the same as that described earlier [1].
Sample Information:
- Chemically pure salts were recrystallized before being used.
Measurement Errors:
Ambient temperature: No information is given.
Mass concentration (m/v) (1): No information is given.
Methodology Citation
1 Shenkin, Ya. S.; Ruchnova, S. A.; Shenkina, A. P.; Zh. Neorg. Khim. 1968, 13, 256-259.
System Components:
- Ammonia, $\ce{ NH3 }$; [7664-41-7] NIST WebBook
- Phosphoric acid, $\ce{ H3PO4 }$; [7664-38-2] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Remarks: NOTE: According to the authors, the "temperature depression" (not defined) is a nearly linear function of -lg N.
| 100w1 | w2 | 100w3 | 100w4 | 100w5 | $x_{5}$ | BP (°C) | m3 (mol/kg) | m4 (mol/kg) |
|---|---|---|---|---|---|---|---|---|
| 71.84 | 0.00 | 10.63 | 61.20 | 28.16 | 0.1463b | 109.4 | 22.18 | 22.18 |
| 67.90 | 1.82 | 10.05 | 59.66 | 30.28 | 0.1343 | 110.8 | 19.49 | 20.11 |
| 64.20 | 8.90 | 9.50 | 63.59 | 26.90 | 0.1568 | 111.1 | 20.75 | 24.12 |
| 60.01 | 14.12 | 8.88 | 65.24 | 25.87 | 0.1656 | 112.0 | 20.16 | 25.73 |
| 57.22 | 22.34 | 8.47 | 71.08 | 20.44 | 0.1865 | 115.1 | 24.33 | 35.49 |
| 59.44 | 23.21 | 8.80 | 73.85 | 17.35 | 0.2510 | 119.2 | 29.78 | 43.43 |
| 58.29 | 29.02 | 8.63 | 78.68 | 12.69 | 0.3633 | 122.9 | 39.93 | 63.26 |
| 64.53 | 30.98 | 9.55 | 85.95 | 4.49 | 0.6556 | 147.0 | 124.9 | 195.3 |
| 71.50 | 24.64 | 10.58 | 85.55 | 3.86 | 0.7054 | 152.0 | 161.0 | 226.2 |
| 76.76 | 19.50 | 11.36 | 84.89 | 3.74 | 0.7146 | 155.6 | 178.4 | 231.6 |
| 79.72 | 16.24 | 11.80 | 84.15 | 4.04 | 0.6840 | 149.8 | 171.5 | 212.5 |
| 82.82 | 14.71 | 12.26 | 85.26 | 2.47 | 0.8662 | 161.0 | 291.5 | 352.2 |
| 83.17 | 14.75 | 12.31 | 85.60 | 2.08 | 0.9318 | 170.8 | 347.6 | 419.9 |
| 86.60 | 12.31 | 12.82 | 86.08 | 1.09 | 1.1906 | 170.0 | 690.6 | 805.9 |
| 90.56 | 6.00 | 13.41 | 83.15 | 3.44 | 0.7375 | 212.0 | 228.8 | 246.6 |
| 90.56 | 8.19 | 13.41 | 85.34 | 1.25 | 1.1805 | 210.5 | 629.8 | 696.6 |
| 92.77 | 4.39 | 13.73 | 83.42 | 2.84 | 0.9079 | 221.5 | 283.9 | 299.7 |
(a) These values were calculated by the compilers.
(b) N is the mol fraction of water in the system.
