Compilation - Ethene with Heptane (IUPAC SDS Volume 57)
SDS Volume (1354)
Volume 57. Ethene, p None
Original Measurements
Paratella, A.; Riv. Combust. 1963, 17, 334-341.
Variables:
Room Temp:
373.15 - 473.15
$\pu{K}$
Pressure:
4.05 - 10.13
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
A high pressure apparatus employing a glass capillary tube immersed in mercury was used. Agitation was by means of a magnetically-operated agitation system. A cathetometer was used to determine the quantity of solvent charged and a microburette was used to measure the volumes of gas dissolved.
Source and Purity of Materials:
- Ethene was prepared by reaction of Zn with dibromoethane in an alcohol solution. The purity was determined at 99.5%.
- Heptane was from Phillips Petroleum of the highest purity grade (unspecified).
Estimated Errors:
Ambient temperature: δT/K = ±0.1
Mass concentration (m/v) (1): δΠ/atm = ±0.5
δx1 = ±0.02
Components:
- Ethene, $\ce{ C2H4 }$; [74-85-1] NIST WebBook
- Heptane, $\ce{ C7H16 }$; [142-82-5] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $T$ (°C) | $y_{1}$ | K1 | $x_{1}$ | $P$ ($\pu{MPa}$) | K2 |
|---|---|---|---|---|---|---|
| 373.15 | 100 | 0.900 | 0.144 | 0.306 | 4.05 | 2.95 |
| 373.15 | 100 | 0.919 | 0.148 | 0.450 | 6.08 | 2.04 |
| 373.15 | 100 | 0.905 | 0.237 | 0.599 | 8.11 | 1.51 |
| 373.15 | 100 | 0.837 | 0.724 | 0.775 | 10.13 | 1.08 |
| 423.15 | 150 | 0.775 | 0.298 | 0.245 | 4.05 | 3.16 |
| 423.15 | 150 | 0.822 | 0.283 | 0.371 | 6.08 | 2.21 |
| 423.15 | 150 | 0.925 | 0.354 | 0.506 | 8.11 | 1.63 |
| 423.15 | 150 | 0.764 | 0.716 | 0.670 | 10.13 | 1.14 |
| 473.15 | 200 | 0.520 | 0.596 | 0.195 | 4.05 | 2.67 |
| 473.15 | 200 | 0.586 | 0.595 | 0.304 | 6.08 | 1.93 |
| 473.15 | 200 | 0.602 | 0.702 | 0.433 | 8.11 | 1.39 |
(1) Calculated by the compiler.
(2) Liquid and vapor compositions were calculated by the Compiler to satisfy the Equilibrium Constants; there were not given in the paper although they were shown in a graph.
