IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with Trichloromethane (chloroform) and Methylbenzene (toluene)

Components:
   (1) Trichloromethane (chloroform); CHCl3; [67-66-3]  NIST Chemistry WebBook for detail
   (2) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (3) Methylbenzene (toluene); C7H8; [108-88-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Leites, I.L.; Ivanovskii, F.P., Khim. Prom. 1962, 9, 653-657.

Variables:
   Temperature = 243.15 K
   Pressure = 101.325 kPa
   Concentration = 0 - 1.0 (x₃)

Prepared By:
   W. Hayduk

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


t/°C	T/K	Henry's law constant, K [atm (mole fraction)^–1]	Henry Constant Note	Mole Fraction (x₁)	x₁ Note	Mole Fraction (x₃)	x₃ Note	Remark(s)
−30	243.15	23.67	3	0.0432	3	0 (chloroform)	1 Solvent Composition, Toluene	(2) 4.257 log H', H'/mm Hg
−30	243.15	25.95	3	0.0385	3	0.25	1 Solvent Composition, Toluene	(2) 4.295 log H', H'/mm Hg
−30	243.15	27.43	3	0.0365	3	0.50	1 Solvent Composition, Toluene	(2) 4.319 log H', H'/mm Hg
−30	243.15	27.75	3	0.0360	3	0.75	1 Solvent Composition, Toluene	(2) 4.324 log H', H'/mm Hg
−30	243.15	26.50	3	0.0377	3	1.0 (toluene)	1 Solvent Composition, Toluene	(2) 4.304 log H', H'/mm Hg

Notes:
   ¹  Compositions of two-component solvent solutions are given on a solute free basis.
   ²  Only graphical results were available; values of log Henry's constant (H' ) were read from an enlarged graph by the compiler.
   ³  Values of Henry's constant (H ) and mole fraction solubility (x₁) were calculated by the compiler.

Method/Apparatus/Procedure:
   A metal cryostat was cooled with dry-ice and acetone and controlled to a temperature to ± 0.05 K.
The equilibration cell was mounted in the cryostat. The solvent was purified by fractional distillation and analyzed by chromatography. Details were not given.

Source and Purity of Materials:
   1. Ethene purity was stated to be 99.9%.
   2. Tetrachloromethane was distilled and analyzed by chromatography. Purity not specified.
   3. Methylbenzene was distilled and analyzed by chromatography. Purity not specified.

Estimated Errors:
   Solubility: δx₁/x₁ = ± 0.01 (Authors)
   Temperature: δT/K = ± 0.05