SDS Volume (1116)
Volume 57. Ethene, p None
Original Measurements
Hannaert, H.; Haccuria, M.; Mathieu, M. P.; Ind. Chim. Belge 1967, 32, 156-164.
Variables:
Room Temp:
243.15 - 293.15
$\pu{K}$
Pressure:
101.3
$\pu{kPa}$
Prepared by:
Method/Apparatus/Procedure:
The authors describe several methods used; the one used in this case is the least accurate. The apparatus is of glass and consists of a burette in which the gas is confined over mercury, two bulbs for the solvent, one above the other, a mercury manometer and a constant temperature bath. A measured volume of solvent is degassed in the top bulb at ambient temperature and charged to the absorption bulb in the bath. Gas is charged to the desired pressure. The quantity of gas added at constant pressure is measured. Agitation is manual.
Source and Purity of Materials:
- Ethene. Air Liquide. Specified purity, 99.9%.
- Dimethylbenzenes. Merck and Co. Mixture of 90% dimethylbenzenes, 5% methylbenzene, and 5% ethylbenzene.
Estimated Errors:
Mass concentration (m/v) (1): δx1/x1 = ±10 to 15% (authors)
Components:
- Ethene, $\ce{ C2H4 }$; [74-85-1] NIST WebBook
- Xylene (isomer mix), $\ce{ C8H10 }$; [1330-20-7] NIST WebBook
Experimental Data
The authors definitions are:
The function, Kπν/atm, is equivalent to a Henry’s constant in the form H1,2/atm = (ƒ1/atm)/x1 where ƒ1 is the fugacity.
| $T$ ($\pu{K}$) | $T$ (°C) | $x_{1}$ |
|---|---|---|
| 243.15 | -30 | 0.0368 |
| 263.15 | -10 | 0.0251 |
| 283.15 | 10 | 0.0180 |
| 293.15 | 20 | 0.0155 |
(1)
Mole fraction solubility calculated by compilers for a gas partial pressure of 101.3 kPa using the equation developed by the authors with ν = 1, for the applicable temperature range:
The authors' definitions are:
The function, Kπν/atm, is equivalent to a Henry's constant in the form H1,2/atm = (ƒ1/atm)/x1 where ƒ1 is the fugacity.
