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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethene with Water
Components:
(1) Ethene; C2H4; [74-85-1]
NIST Chemistry WebBook
for detail
(2) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Sanchez, M.; Lentz, H., High Temp. - High Press. 1973, 5, 689-699.
Variables:
Temperature = 439.15 K to 573.15 K
Pressure = 10.0 to 94.5 MPa
Prepared By:
W. Hayduk
Experimental Remarks:
Smoothed values as obtained by extrapolation and interpolation are also available in this paper.
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
t/°C
T/K
Temp Note
Pressure [bar]
Pressure [MPa]
Pressure Note
Pressure (compiler) [MPa]
Mole Fraction (x
1
)
x
1
Note
Mole Fraction of Gas (y
1
)
y
1
Note
166
439.15 (1)
1
100
10
1
8.60
0.004
in Liquid
0.860
in Gas
166
439.15 (1)
1
150
15
1
13.35
0.005
in Liquid
0.890
in Gas
166
439.15 (1)
1
635
63.5
1
60.90
0.010
in Liquid
0.959
in Gas
166
439.15
1
945
94.5
1
86.00
(0.008)
1
0.910
in Gas
250
523.15 (1)
1
190
19.0
1
11.97
0.014
in Liquid
0.630
in Gas
250
523.15 (1)
1
240
24.0
1
16.51
0.018
in Liquid
0.688
in Gas
250
523.15 (1)
1
375
37.5
1
28.73
0.026
in Liquid
0.766
in Gas
250
523.15 (1)
1
570
57.0
1
42.75
0.034
in Liquid
0.750
in Gas
250
523.15 (1)
1
730
73.0
1
59.13
0.040
in Liquid
0.810
in Gas
300
573.15 (1)
1
240
24.0
1
12.38
0.024
in Liquid
0.516
in Gas
300
573.15 (1)
1
380
38.0
1
22.69
0.036
in Liquid
0.597
in Gas
300
573.15 (1)
1
550
55.0
1
30.25
0.047
in Liquid
0.550
in Gas
Notes:
1
Calculated by compiler.
2
Brackets as in original paper.
Method/Apparatus/Procedure:
The apparatus consisted of a high pressure piston pump, Bourdon pressure gauges, a stainless steel capillary tube equilibrium cell 4.7 mm in inside diameter, a tubular storage chamber for the gas, as well as an associated temperature sensing element, sampling probes and valves. The apparatus was mounted in a constant temperature chamber. The equilibrium cell was charged with a known quantity of solvent by rotating it to a horizontal position. The quantity of gas was determined by material balance and the PV relation in the gas supply tube.
Source and Purity of Materials:
1. Ethene purity was specified to be 99.99%.
2. Water was double distilled.
Estimated Errors:
Solubility: δ
x
1
/x
1
= ± 0.05 or ± 5% (Compiler)
Temperature: δ
T
/K = ± 0.5