IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with 2-Propanone or acetone

Components:
   (1) 2-Propanone (acetone); C3H6O; [67-64-1]  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 313.15 K
   Pressure = 101.325 kPa (1 atm)

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

Experimental Remarks:

   The mole fraction and the Bunsen coefficient values were calculated by the compiler with the assumption the gas is ideal and that Henry's law is obeyed.

Smoothed Data: For use between 273.15 K and 313.15 K.

ln x₁ = –8.1906 + 10.9452/(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	4.843	4.843	1.520
278.15	4.572	4.490	1.420
283.15	4.308	4.156	1.325
288.15	4.074	3.862	1.240
293.15	3.847	3.585	1.160
298.15	3.640	3.335	1.088
303.15	3.473	3.129	1.028
308.15	3.285	2.912	0.9641
313.15	3.142	2.741	0.9144

The standard error about the regression line is 2.67 x 10^–5.
T/K	Mole Fraction (x₁)
273.15	1.524
283.15	1.323
288.15	1.237
293.15	1.160
298.15	1.089
303.15	1.025
313.15	0.914

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) Acetone. Nippon Pure Chemical Co. or Merck. Extra pure grade. Recrystallized with sodium sulfite and stored over calcium chloride. Fractionated, boiling point (760 mmHg) 56.09 °C.

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