Components:
(1) Toluene,
C7H8; [108-88-3]
NIST WebBook
(2) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Bradley, R. S.; Dew, M. J.; Munro, D. C.; High Temp. High Press. 1973, 5, 169-76.
Variables:
Ambient temperature: 25 - 55 °C
Pressure: 1 - 1200 bar
Prepared by:
Method/Apparatus/Procedure:
The solubility of (1) in (2) at room temperature and pressure was determined in a stoppered 1 mm silica cuvette placed in a Unicam SP500 spectrophotometer and stirred magnetically. Measurements were made until a constant concentration was reached. The value was crosschecked against a 2-L sample of saturated solution which had been equilibrated for some months.
Solubilities at higher temperature and pressure were similarly determined in a special cell fitted into the spectrophotometer. Many details of the apparatus are given in the paper.
Source and Purity of Materials:
- Not specified.
- Distilled, air-free
Estimated Errors:
Ambient temperature: Not specified.
Experimental Values:
Note: Data at other pressures are presented in graphical form. Data are also presented for the solubility of (1) in aqueous solutions of AgNO3 and KNO3 at various temperatures and pressures.Solubility of toluene in water
| T (°C) | P (bar)b | C1 (mol/L) | x1a | MR1 (g1/100 g sln)a |
|---|---|---|---|---|
| 25.0 | 1.0 | 5.95 x 10-3 | 1.07 x 10-4 | 5.47 x 10-2 |
| 45.0 | 1.0 | 7.85 x 10-3 | 1.41 x 10-4 | 7.22 x 10-2 |
| 55.0 | 1.0 | 9.4 x 10-3 | 1.68 x 10-4 | 8.6 x 10-2 |
| 45.0 | 1000.0 | 1.21 x 10-2 | 2.17 x 10-4 | 1.11 x 10-1 |
| 55.0 | 1000.0 | 1.31 x 10-2 | 2.37 x 10-4 | 1.21 x 10-2 |
(a) Assuming a solution density of 1.00 kg/L at all temperatures and pressures. (b) 1 bar = 0.1 MPa exactly.
