IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with Water

Components:
   (1) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (2) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Grollman, A., J. Biol. Chem. 1929, 82, 317-325.

Variables:
   Temperature = 298.15 K (25.0 °C)
   Pressure = 73.3 to 133.3 kPa

Prepared By:
   W. Hayduk

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)


T/K	Pressure [kPa]	Pressure Note	Density ρ [mm mercury]	Ostwald coefficient L [cm³ gas/cm^–3 solvent]	Mole Fraction (x₁)	x₁ Note
298.15	73.33	1	550	0.112	−	2
298.15	80.0	1	600	0.113	−	2
298.15	86.7	1	650	0.113	−	2
298.15	93.3	1	700	0.112	−	2
298.15	100.0	1	750	0.113	−	2
298.15	106.7	1	800	0.113	−	2
298.15	113.3	1	850	0.113	−	2
298.15	112.0	1	900	0.114	−	2
298.15	126.7	1	950	0.113	−	2
298.15	133.3	1	1000	0.113	−	2
298.15	−	1	−	0.1129 (average)	8.39 (average)	2

Notes:
   ¹  Calculated by Compiler
   ²  Mole fraction solubility for a gas partial pressure of 101.325 kPa and based on the he average value for the Ostwald coefficient calculated by compiler.

Method/Apparatus/Procedure:
   A glass bubbling-type of saturator immersed in a constant temperature bath was used. A known volume of saturated solution was transferred over mercury into a Van Slyke desorption apparatus. Gas removed in three evacuations was transferred to a sample tube where the volume was determined and a sample of the gas was analyzed. Solubilities were determined at several pressures below atmospheric and above atmospheric and expressed as Ostwald coefficients.

Source and Purity of Materials:
   1. Ethene source and purity not given.
   2. Water distilled.

Estimated Errors:
   Solubility: δL/L = ± 4% (Compiler)
   Temperature: δT/K = ± 0.05