SDS Volume (1199)
Volume 57. Ethene, p None
Original Measurements
Camacho Rubio, F.; Delgado Diaz, S.; Alvaro Alvarez, R.; Revista Ing. Quim. (Spain) 1980, 12, 83-87.
Variables:
Room Temp:
293.15 - 308.15
$\pu{K}$
Pressure:
101.325
$\pu{kPa}$
Prepared by:
Method/Apparatus/Procedure:
A glass vessel, 100 mL in volume, equipped with three ports and submerged in a constant temperature bath, is used for solubility determinations. One port is connected to a gas burette from which a known volume of gas can be charged using a mercury levelling bottle. Another port is for evacuation and the third is for temperature measurement. A magnetic stirrer is employed. A drying tube is used to ensure that the ethene is dry. Care is also taken to ensure that the purified solvent is not exposed to air.
Source and Purity of Materials:
- Ethene. Neither source nor purity specified.
- Trichloromethane. The 1.5 parts ethanol stabilizer per 100 parts solvent (v/v) were removed by adsorption on activated silica. Purity not specified.
Estimated Errors:
Mass concentration (m/v) (1): δx1/x1 = ±4% (Compiler)
Components:
- Ethene, $\ce{ C2H4 }$; [74-85-1] NIST WebBook
- Trichloromethane, $\ce{ CHCl3 }$; [67-66-3] NIST WebBook
Experimental Data
The ethene solubility in chloroform is shown as a straight-line graph only, with log Ks versus 1/T for an applicable temperature range from 293.15 to 308.15 K.
| $T$ ($\pu{K}$) | $T$ (°C) | $x_{1}$ | $k_{\rm{D}}$ ($\pu{atm-1}$) |
|---|---|---|---|
| 293.15 | 20 | 0.0150 | 66.62 |
| 298.15 | 25 | 0.0135 | 74.07 |
| 303.15 | 30 | 0.0122 | 82.10 |
| 308.15 | 35 | 0.0110 | 90.66 |
(1) Values of log Ks were taken from an enlarged graph and fitted to an equation by the compiler as follows:
log10Ks = 6.5583 - 866.67 (T/K)-1
Ks = a form of Henry's constant, mmHg pressure (mo1/1)-1
(2) A more common Henry's constant (H) and mole fraction ethene solubility for a partial pressure of 101.3 kPa were calculated by the compiler.
