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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethene with Eicosane (n-Eicosane)
Components:
(1) Ethene; C2H4; [74-85-1]
NIST Chemistry WebBook
for detail
(2) Eicosane (n-Eicosane); C20H42; [112-95-8]
NIST Chemistry WebBook
for detail
Original Measurements:
Chou, J.S.; Chao, K.C., J. Chem. Eng. Data 1989, 34, 68-70.
Variables:
Temperature = 373.25 K to 573.15 K
Pressure = 1.01 to 5.06 MPa
Prepared By:
W. Hayduk
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
t/°C
T/K
Temp Note
Pressure [MPa]
Pressure Note
Mole Fraction (x
1
)
100.1
373.25
1
0.1013
1
0.0123
100.1
373.25
1
1.023
1
0.123
100.1
373.25
1
2.033
1
0.228
100.1
373.25
1
3.034
1
0.320
100.1
373.25
1
4.057
1
0.395
100.1
373.25
1
5.061
1
0.456
200.0
473.15
1
0.1013
1
0.0081 (2)
200.0
473.15
1
1.031
1
0.0820
200.0
473.15
1
2.030
1
0.155
200.0
473.15
1
3.031
1
0.221
200.0
473.15
1
4.049
1
0.281
200.0
473.15
1
5.057
1
0.335
300.0
573.15
1
0.1013
1
0.0065 (2)
300.0
573.15
1
1.025
1
0.0659
300.0
573.15
1
2.033
1
0.132
300.0
573.15
1
3.035
1
0.190
300.0
573.15
1
4.051
1
0.245
300.0
573.15
1
5.059
1
0.296
Notes:
1
Calculated by compiler.
2
Estimated by compiler.
Method/Apparatus/Procedure:
Ethene is bubbled through a presaturator and then through the equilibrium cell, both being filled with the molten solvent. The cell is thermostated in a nitrogen bath. After saturation, a (molten) liquid sample is withdrawn into an evacuated trap connected to a gas handling system. The solvent solidifies, and the volume of the gas released is measured in a burette over water at a known temperature and pressure. The mass of the solid solvent is determined. Further details are in Ref. 1.
Source and Purity of Materials:
1. Ethene was from Matheson Gas Products at a specified purity of 99.5%.
2. Eicosane was from Sigma Chemicals at a specified purity of 99.0%.
Estimated Errors:
Solubility: δ
x
/
x
= ± 0.02 (Compiler)
Temperature: δ
T
/K = ± 0.1
Pressure: δ
P
/atm = ± 0.05
References:
1. Huang, S.H.; Lin, H.M.; Chao, K.C., Fluid Phase Equil. 1987, 36, 141.