IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Ethene with Ethanol, 2, 2 ' , 2 ' '-nitrilotris-, (Triethanolamine) and Water

Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Ethene, (Ethylene); C2H4; [74-85-1]  NIST Chemistry WebBook for detail
   (3) Ethanol, 2, 2 '-iminobis-, (Dieth-anolamine); C4H11NO2; [111-42-2]  NIST Chemistry WebBook for detail

Original Measurements:
   Sada, E.; Kumazawa, H.; Butt, M.A., J. Chem. Eng. Data 1977, 22, 277-278.

Variables:
   Temperature = 298.15 K
   Pressure = 101.3 kPa

Prepared By:
   C.L. Young

Experimental Remarks:

   Pressure = 1 atmosphere = 1.01325 × 10⁵ Pa.

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


T/K	Concentration C₂ [mol L^–1]	Concentration Note	α
298.15	0.00	Conc. of amine	0.1111
298.15	0.193	Conc. of amine	0.1131
298.15	0.443	Conc. of amine	0.1138
298.15	0.599	Conc. of amine	0.1156
298.15	0.707	Conc. of amine	0.1161
298.15	0.889	Conc. of amine	0.1165
298.15	1.148	Conc. of amine	0.1163
298.15	1.557	Conc. of amine	0.1150
298.15	2.277	Conc. of amine	0.1100
298.15	2.624	Conc. of amine	0.1053

Notes:

Method/Apparatus/Procedure:
   Equilibrium established between measured volume of gas and a measured amount of gas-free liquid in a cell fitted with a magnetic stirrer. Amount of gas absorbed estimated from change in volume of gas. Concentration of amine determined by titration. Details in source and Ref. 1.

Source and Purity of Materials:
   1. Commercial sample, minimum purity 99.6 mole per cent.
   2. Reagent grade of guaranteed quality.
   3. Distilled and degassed.

Estimated Errors:
   Solubility: δα = ± 2%. (estimated by compiler)
   Temperature: δT/K = ± 0.2 (estimated by compiler)

References:
   1. Onda, K.; Sada, E.; Kobayashi, T.; Kito, S.; Ito, K., J. Chem. Eng. Jpn. 1970, 3, 18.