Compilation - Pentane with Water (IUPAC SDS Volume 37)
SDS Volume (585)
Volume 37. Hydrocarbons in Water and Seawater, Part I, p 61
Original Measurements
Jonsson, J. A.; Vejrosta, J.; Novak, J.; Fluid Phase Equilib. 1982, 9, 279-86.
Variables:
Room Temp: 15 - 35 °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) analyzed by gas chromatography. The method and apparatus are described in detail in [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.
Components:
- Pentane, $\ce{ C5H12 }$; [109-66-0] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
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 saturation pressure of (1).
Solubility of pentane in water
| $T$ (°C) | MR1 (mg/kg) | $x_{1}$ | MR1 (g1/100 g sln) |
|---|---|---|---|
| 15 | 42.9 | 1.07 x 10-5 | 4.29 x 10-3 |
| 20 | 41.4 | 1.03 x 10-5 | 4.14 x 10-3 |
| 25 | 40.6 | 1.01 x 10-5 | 4.06 x 10-3 |
| 30 | 40.3 | 1.01 x 10-5 | 4.03 x 10-3 |
| 35 | 40.6 | 1.01 x 10-5 | 4.06 x 10-3 |
(a) These values were calculated by the compiler.
