IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Ethene with 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
Original Measurements:
   Sahgal, A.; La, H.M.; Hayduk, W., Can. J. Chem. Eng. 1978, 56, 354-357.

 Variables:
   Temperature = 298.15 K
   Pressure = 298.15 K

 Prepared By:
   W. Hayduk

 Experimental Remarks:
   Mole fraction ethene, x1, is for a gas partial pressure of 101.325 kPa.

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   
t/°CT/KOstwald coefficient L [cm3 gas (cm3 solvent)&#]Mole Fraction (x1)
25298.150.3127.15
 Notes:

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. 1,2-Ethanediol was from Fisher Chemicals of 99.8 mole % purity.

 Estimated Errors:
   Solubility: δx1/x1 = ± 2%
   Temperature: δT/K = ± 0.05