Components:
(1) Octane,
C8H18; [111-65-9]
NIST WebBook
(2) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Jonsson, J. A.; Vejrosta, J.; Novak, J.; Fluid Phase Equilib. 1982, 9, 279-86.
Variables:
Ambient temperature: 15 °C - °C35 °C
Prepared by:
Method/Apparatus/Procedure:
Air-water partition coefficients were measured by saturating a portion of water by a stream of nitrogen containing a known vapour concentration of (1). After equilibration, the dissolved (1) was adsorbed in a porous polymer trap and the entrapped (1) analysed by gas chromatography. The method and apparatus are described in detail in ref 1.
Source and Purity of Materials:
- Fluka, >99.8%, used as received.
- not specified.
Estimated Errors:
Ambient temperature: not specified.
References
1 Vejrosta, J.; Novak, J.; Jonsson, J. A.; Fluid Phase Equil. 1982, 8, 25-35.
Experimental Values:
Note: Solubility values were calculated by the authors from their smoothed air-water partition coefficient (KAW) by assuming KAW values obtained at infinite dilution were valid at the saturatioin pressure of (1).Solubility of octane in water
| T (°C) | MR1 (mg/kg) | x1a | MR1 (g1/100 g sln)a |
|---|---|---|---|
| 15.0 | 6.53 x 10-1 | 1.03 x 10-7 | 6.53 x 10-5 |
| 20.0 | 6.28 x 10-1 | 9.9 x 10-8 | 6.28 x 10-5 |
| 25.0 | 6.15 x 10-1 | 9.7 x 10-8 | 6.15 x 10-5 |
| 30.0 | 6.12 x 10-1 | 9.6 x 10-8 | 6.12 x 10-5 |
| 35.0 | 6.20 x 10-1 | 9.8 x 10-8 | 6.20 x 10-5 |
(a) These values were calculated by the compiler.
