IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with 1-Methyl-2-pyrrolidinone, Nitrobenzene, Benzenamine (Aniline), Dimethylsulfoxide, or Hexamethylphosphoric triamide

Components:
   (1) 1-Methyl-2-pyrrolidinone, Nitrobenzene, Benzenamine (Aniline), Dimethylsulfoxide, or Hexamethylphosphoric triamide; ; []  NIST Chemistry WebBook for detail
   (2) Ethene; C2H4; [74-85-1]  NIST Chemistry WebBook for detail

Original Measurements:
   Lenoir, J-Y.; Renault, P.; Renon, H., J. Chem. Eng. Data 1971, 16, 340-2.

Variables:
   Temperature = 298.15 K
   Pressure = 298.15 K

Prepared By:
   C.L. Young

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


T/K	Henry's law constant, K [atm]	Mole Fraction (x₁)	x₁ Note	Remark(s)
298.15	126	0.00794	1	1-Methyl-2-pyrrolidinone; C5H9NO; [872-50-4]
298.15	126	0.007947	1	Nitrobenzene; C6H5NO2; [98-95-3]
298.15	208	0.00481	1	Benzenamine (Aniline); C6H7N; [62-53-3]
298.15	312	0.00321	1	Sulfinylbismethane (Dimethylsulfoxide); C2H6SO; [67-68-5]
298.15	52.9	0.0189	1	Hexamethylphosphoric triamide; C6H18NO3P; [680-31-9]

Notes:
   ¹  Calculated by compiler for a partial pressure of 101.3 kPa assuming that the mole fraction ethene is equal to 1/H.

Method/Apparatus/Procedure:
   A conventional gas-liquid chromatographic unit fitted with a thermal conductivity detector was used. The carrier gas was helium. The value of Henry's law constant was calculated from the retention time. The value applies to very low partial pressures of gas and there may be a substantial difference from that measured at 1 atm. pressure. There is also considerable uncertainty in the value of Henry's constant since surface adsorption was not allowed for although its possible existence was noted.

Source and Purity of Materials:
   (1) L'Air Liquide sample, minimum purity 99.9 mole per cent.
   (2) Touzart and Matignon or Serlabo sample, purity 99 mole per cent.

Estimated Errors:
   Solubility: δH/atm = ± 6% (estimated by compiler)
   Temperature: δT/K = ± 0.1 (estimated by compiler