Components:

(1) Ethylene, C₂H₄; [74-85-1] NIST WebBook
(2) Hexane, C₆H₁₄; [110-54-3] NIST WebBook

Original Measurements

Sahgal, A.; La, H. M.; Hayduk, W.; Can. J. Chem. Eng. 1978, 56, 354-357.

Variables:

Ambient temperature: 298.15 K
Pressure: 101.325 kPa

Prepared by:

W. Hayduk

Method/Apparatus/Procedure:

A glass apparatus equipped with a gas storage burette, a spiral tube for gas absorption, a miniature internal manometer and a solution storage burette was used. Degassed solvent was injected at a constant rate into the absorption spiral by means of a syringe-pump while the gas was displaced by mercury using a mechanical elevating device for a mercury bottle, at a rate required to keep the gas pressure constant. Readings of the volume of solvent required to achieve saturation were obtained from which the solubility was calculated. Constant temperature fluid was circulated through a jacket enclosing the burettes and absorption spiral.

Source and Purity of Materials:

1. Ethene was CP grade from Matheson, 99.5 mole% minimum purity.
2. Hexane was from Fisher Chemicals, 99.0 mole% minimum purity.

Estimated Errors:

Ambient temperature: δT/K = ±0.05
Mass concentration (m/v) (1): δx₁/x₁ = ±2%