SDS Volume (1255)

Volume 57. Ethene, p None

Original Measurements

Zernov, V. S.; Kogan, V. B.; Lyubetskii, S. G.; J. Appl. Chem. USSR 1971, 44, 1837-40.

Variables:

Room Temp: 293.1 - 423.1 $\pu{K}$
Pressure: 0.20 - 7.09 $\pu{MPa}$

Prepared by:

W. Hayduk

Method/Apparatus/Procedure:

A description of the apparatus is found in [1]. It consists of two graduated thick-walled glass tubes, 5 mm in diameter and 60 cm in length sealed in a temperature-controlled jacket. Mercury can be independently charged to the bottom of each tube. The saturation tube is equipped with an electro-magnetic vibrator immersed in the mercury to aid in equilibration of the phases. A separate mercury reservoir is pressurized with nitrogen whose pressure can be regulated. Ethylene is stored in one tube, while the solvent is condensed in the equilibration tube. The ethene is transferred to the solvent tube as required. The solubility method is thus a volumetric one.

Source and Purity of Materials:

1. Purity 99.3%.
2. Twice distilled. BP = 345.4 K and refractive index $n_{D}^{20}$ = 1.3953.
   Note: At high temperatures and pressures 0.0001 mole% hydroquinone inhibitor was added.

Estimated Errors:

Ambient temperature: δT/K = ±0.05
Mass concentration (m/v) (1): δx₁/x₁ = ±0.04 (compiler)
Pressure: δP/P = ±0.25%

References

¹ Zernov, V. S.; Kogan, V. B.; Lyubetskii, S. G.; Duntov, F. I.; J. Appl. Chem. USSR 1971, 44, 693-696.