Components:
(1) Hexane,
C6H14; [110-54-3]
NIST WebBook
(2) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Tsonopoulos, C.; Wilson, G. M.; AIChE J. 1983, 29, 990-9.
Variables:
Ambient temperature: 311 - 473 K
Pressure: 0.05 - 3.5 Mpa
Prepared by:
Method/Apparatus/Procedure:
All experimental details are given in an Appendix deposited in a Documentation Centre rather than in the original paper. The solubility of (1) in (2) was measured by gas chromatography, whilst that of (2) in 91) was measured by Karl Fischer titration.
Source and Purity of Materials:
- Not details given.
- no details given.
Estimated Errors:
Ambient temperature: not stated.
Mass concentration (m/v) (1): ±5% relative; repeatability of replicate anlyses.
Pressure: ±1%; type of error not stated.
Experimental Values:
Note: The three phase critical point was reported to be 496.7 K, 5.295 Mpa and x1 = 4.982 (0.239 g(1)/100 g sln, compiler).The authors also report equations fitted to their own and literature data over the range 273-497 K, viz.
ln x1 = -367.9847 + 16128.646/T + 52.820813 ln T
ln x2 = -45.1714 - 1635.73/T + 7.53503 ln T
The solubility of hexane in water
| T (K) | P (MPa) | x1 | MR1 (g1/100 g sln)c |
|---|---|---|---|
| 310.93 | - | 2.38 x 10-5 | 1.14 x 10-1 |
| 366.48 | - | 5.73 x 10-5 | 2.74 x 10-1 |
| 367.55 | - | 5.35 x 10-5 | 2.56 x 10-1 |
| 373.15 | 3.482 x 10-1 | 6.21 x 10-5 | 2.97 x 10-1 |
| 422.04 | - | 2.71 x 10-4 | 1.30 x 10-2 |
| 423.15 | 1.2548 | 3.39 x 10-4 | 1.62 x 10-2 |
| 473.15 | 3.516 | 1.85 x 10-3 | 8.85 x 10-2 |
(a) Not specified. (b) Average value.
The solubility of water in hexane
| T (K) | P (MPa) | x2 | MR2 (g2/100 g sln)c |
|---|---|---|---|
| 313.15 | 4.537 x 10-2 | 0.117,0.123 x E-2 | 2.5 x 10-2 |
| 367.55 | - | 5.95 x 10-3 | 1.24 x 10-1 |
| 373.15 | 3.482 x 10-1 | 7.09 x 10-3 | 1.48 x 10-1 |
| 423.15 | 1.2548 | 3.11 x 10-2 | 6.67 x 10-1 |
| 473.15 | 3.516 | 1.10 x 10-1 | 2.52 |
