IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with 1-Butanol and 1, 2-Ethanediol (ethylene glycol)

Components:
   (1) 1, 2-Ethanediol (ethylene glycol); C2H5O2; [107-21-1]  NIST Chemistry WebBook for detail
   (2) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (3) 1-Butanol; C4H10O; [71-36-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Sahgal, A.; Hayduk, W., J. Chem. Eng. Data 1979, 24, 222-227.

Variables:
   Temperature = 298.15 K
   Pressure = 298.15 K
   Concentration = 0 - 1.0 (x₃/Mole Fraction)

Prepared By:
   W. Hayduk

Experimental Remarks:

   Values for pure solvents were previously given (in Ref. 1).

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


t/°C	T/K	Ostwald coefficient L [cm³ gas (cm³ solvent)^&#]	Ostwald Note	Mole Fraction (x₁)	x₁ Note	Mole Fraction (x₃)	x₃ Note	Volume
25	298.15	2.23	Ethene Solubility	0.00834	Ethene Solubility	0	2 Conc. of Solvent	0 (Butanol)
25	298.15	1.82	Ethene Solubility	0.00611	Ethene Solubility	0.260	2 Conc. of Solvent	0.174
25	298.15	1.72	Ethene Solubility	0.00570	Ethene Solubility	0.295	2 Conc. of Solvent	0.201
25	298.15	1.48	Ethene Solubility	0.00456	Ethene Solubility	0.461	2 Conc. of Solvent	0.342
25	298.15	1.31	Ethene Solubility	0.00384	Ethene Solubility	0.531	2 Conc. of Solvent	0.407
25	298.15	1.17	Ethene Solubility	0.00334	Ethene Solubility	0.615	2 Conc. of Solvent	0.490
25	298.15	0.604	Ethene Solubility	0.00151	Ethene Solubility	0.860	2 Conc. of Solvent	0.790
25	298.15	0.450	Ethene Solubility	0.00106	Ethene Solubility	0.956	2 Conc. of Solvent	0.927
25	298.15	0.312	Ethene Solubility	0.000715	Ethene Solubility	1.000	2 Conc. of Solvent	1.0 (Glycol)

Notes:
   ¹  Volume fraction is based on volumes of two liquid components before mixing.
   ²  Mole fraction is shown on a gas-free basis.

Method/Apparatus/Procedure:
   The apparatus utilized a continuous flow of deaerated solvent injected into a glass absorption spiral tube by means of a calibrated syringe pump. The mixed solvent was prepared volumetrically then deaerated and a sample analyzed by a density measurement. A mercury lift device was used for continuously adjusting the residual volume at constant pressure in a gas storage burette. Solvent injection and gas consumption rates were used to calculate solubilities. This paper also includes solution densities and refractive indices as well as ethene molecular diffusivities in the solutions.

Source and Purity of Materials:
   1. Ethene was CP grade from Matheson with minimum purity of 99.5 mole %. Molar volume used at 298.15 K and 101.325 kPa was 24, 326 cm³/mole.
   2. 1-Butanol was from Fisher; purity 99.0 mole %.
   3. 1,2-Ethanediol was from Fisher; purity 99.8 mole %

Estimated Errors:
   Solubility: δz₃ = ± 0.001
δx₁/x₁ = ± 0.02
   Temperature: δT/K = ± 0.05
   Pressure: δP/P = ± 0.01

References:
   1. Sahgal, A.; La, H.M.; Hayduk, W., Can. J. Chem. Eng. 1978, 56, 354.