SDS Volume
Volume 57. Ethene, p 287
Source Publication
Conditions:
Room Temp:
273.15 - 303.15
$\pu{K}$
Pressure:
101.32
$\pu{kPa}$
Compiler:
Methodology:
The solubility apparatus, based on the design of Ben-Naim and Baer, was described earlier [1]. The essential parts were a gas buret, mercury manometer, and solution vessel. The solvent was degassed in the solution vessel. The saturation and volumetric measurements were carried out using solvent saturated gas.
It appears that the mole fraction solubility at one atm was estimated from the raw data by assuming Henry's law is obeyed and that the partial pressure of the solvent is given by Raoult's law.
Sample Information:
- Sociedad Español del Oxigeno. purity 99.90 mole%.
- Merck and Co. sample; purity 98.2 mole%.
Measurement Errors:
Ambient temperature: δT/K = ±0.05
Mass concentration (m/v) (1): δx/x = ±0.007
Methodology Citation
System Components:
- Ethene, $\ce{ C2H4 }$; [74-85-1] NIST WebBook
- Cycloheptanone, $\ce{ C7H12O }$; [502-42-1] NIST WebBook
Experimental Data
The compiler calculated the Bunsen and Ostwald coefficients. Density data were calculated from the equation given in the source and ideal gas behavior was assumed.
The authors fitted the solubility data to the equation:
- ln x1 = -8.4142 + 1172.26/(T/K)
The enthalpy and entropy of solution at 298.15 K and a partial pressure of 101.32 kPa were:
ΔH = -9.75 kJ mo1-1 and ΔS = -0.070 J K-1 mol-1.
| $T$ ($\pu{K}$) | $x_{1}$ | $L$ | α ($\pu{cm3(g) cm-3(l) atm-1}$) |
|---|---|---|---|
| 273.15 | 0.01624 | 32.00 | 32.00 |
| 283.15 | 0.01387 | 28.02 | 27.03 |
| 293.15 | 0.01209 | 25.01 | 23.31 |
| 298.15 | 0.01132 | 23.69 | 21.71 |
| 303.15 | 0.01059 | 22.42 | 20.20 |
