SDS Volume (1152)

Volume 57. Ethene, p None

Original Measurements

Ohgaki, K.; Nishii, H.; Katayama, T.; J. Chem. Eng. Jpn. 1983, 16, 72-73.

Variables:

Room Temp: 298.15 ± 0.01 $\pu{K}$
Pressure: 60.8 - 97.0 $\pu{kPa}$

Prepared by:

W. Hayduk

Method/Apparatus/Procedure:

A small (20 mL) magnetically stirred absorption vessel was connected to a larger (100 mL) gas reservoir at higher pressure in a constant temperature bath. The volumes of lines, valves and vessels were accurately determined. A quartz Bourdon gauge was used to measure the system pressure. A known mass of deaerated solvent was charged to the absorption vessel and the amount of vapor released on charging was estimated. Gas was charged incrementally to maintain a constant pressure until no additional gas was required. The change in pressure in the gas supply reservoir was used to determine the quantity consumed.

Source and Purity of Materials:
  1. Ethene, min. purity 99.95%.
  2. Methanol, spectrograde, actual purity unspecified.
Estimated Errors:

Ambient temperature: δT/K = ±0.01
Mass concentration (m/v) (1): δx1/x1 = ±0.5% (Authors)

Components:
  1. Ethene, $\ce{ C2H4 }$; [74-85-1] NIST WebBook
  2. Methanol, $\ce{ CH4O }$; [67-56-1] NIST WebBook
Experimental Data

The solubility calculated by compiler for an ethylene partial pressure of 101.325 kPa is x1 = 0.00369 mole fraction ethylene.

$T$ ($\pu{K}$) $y_{1}$ $x_{1}$ $P_{1}$ ($\pu{kPa}$) $k_{\rm{D}}$ ($\pu{MPa}$)
298.15 0.71031.568 x 10-360.77127.26
298.15 0.71401.573 x 10-361.56427.68
298.15 0.79862.541 x 10-387.98027.30
298.15 0.81692.842 x 10-397.00727.50

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