IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with Chlorobenzene

Components:
   (1) Chlorobenzene; C6H5Cl; [108-90-7]  NIST Chemistry WebBook for detail
   (2) Ethene, (Ethylene); C2H4; [74-85-1]  NIST Chemistry WebBook for detail

Original Measurements:
   Horiuti, J., Sci. Pap. Inst. Phys. Chem. Res. (Jpn) 1931/32, 17, 125 - 256.

Variables:
   Temperature = 273.15 K to 363.15 K
   Pressure = 101.325 kPa (1 atm)

Prepared By:
   M.E.Derrick, H.L. Clever

Experimental Remarks:

   The mole fraction and Bunsen coefficient values were calculated by the compiler with the assumption the gas is ideal and that Henry's law is obeyed.
Smoother Data: For use between 273.15 and 313.15 K.
ln x₁ = –13.9824 + 19.6322/ (T/100 K) + 2.7104 ln (T/100 K)

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


T/K	Ostwald coefficient L [cm³ cm^–3]	α [cm³ (STP) cm^–3 atm^–1]	Mole Fraction (x₁)
273.15	3.882	3.882	16.99
278.15	3.640	3.575	15.74
283.15	3.425	3.304	14.63
288.15	3.221	3.053	13.60
293.15	3.018	2.812	12.60
298.15	2.887	2.645	11.92
303.15	2.714	2.445	11.08
308.15	2.576	2.283	10.41
313.15	2.460	2.146	9.838
318.15	2.360	2.026	9.339
323.15	2.265	1.915	8.876
328.15	2.160	1.798	8.380
333.15	2.084	1.709	8.009
338.15	2.007	1.621	7.639
343.15	1.932	1.538	7.288
348.15	1.870	1.467	6.989
353.15	1.815	1.404	6.725
358.15	1.758	1.341	6.459
363.15	1.707	1.284	6.218

The standard error about the regression line is 3.75 x 10^–5.
T/K	Mole Fraction (x₁)
273.15	17.05
288.15	13.56
298.15	11.83
308.15	10.45
318.15	9.33
333.15	8.00
348.15	7.00
363.15	6.21

Method/Apparatus/Procedure:
The apparatus consists of a gas buret, a solvent reservoir, and an absorption pipet. The volume of the pipet is determined at various meniscus heights by weighing a quantity of water. The meniscus height is read with a cathetometer.

The dry gas is introduced into the degassed solvent. The gas and solvent are mixed with a magnetic stirrer until saturation. Care is taken to prevent solvent vapor from mixing with the solute gas in the gas buret. The volume of gas is determined from the gas buret readings, the volume of solvent is determined from the meniscus height in the absorption pipet.

Source and Purity of Materials:
   (1) Ethene. Prepared by dropping ethanol into orthophosphoric acid. The gas was cooled, passed through several wash solutions, dried, and fractionated from liquid air several times.
   (2) Chlorobenzene. Kahlbaum. Dried and distilled. Boiling point (760 mmHg) 131.96 °C.

Estimated Errors:
   Solubility: δ x₁/x₁ = ± 0.01
   Temperature: δT/K = ± 0.05