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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethene with Methanol
Components:
(1) Ethene; C2H4; [74-85-1]
NIST Chemistry WebBook
for detail
(2) Methanol; CH4O; [67-56-1]
NIST Chemistry WebBook
for detail
Original Measurements:
Ohgaki, K.; Nishii, H.; Katayama, T., J. Chem. Eng. (Japan) 1983, 16, 72-73.
Variables:
Temperature = 298.15 K ± 0.01
Pressure = 60.8 to 97.0 kPa
Prepared By:
W. Hayduk
Experimental Remarks:
The solubility calculated by compiler for an ethylene partial pressure of 101.325 kPa is
x
1
= 0.00369 mole fraction ethylene.
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
T/K
Pressure [kPa]
Henry's law constant, K [MPa]
Henry Constant Note
Mole Fraction (x
1
)
x
1
Note
Mole Fraction of Gas (y
1
)
y
1
Note
298.15 ± 0.01
60.771
27.26
H = P1
1.568
Liquid
0.7103
Gas
298.15 ± 0.01
61.564
27.68
H = P1
1.573
Liquid
0.7140
Gas
298.15 ± 0.01
87.980
27.30
H = P1
2.541
Liquid
0.7986
Gas
298.15 ± 0.01
97.007
27.50
H = P1
2.842
Liquid
0.8169
Gas
Notes:
Method/Apparatus/Procedure:
A small (20 cm
3
) magnetically stirred absorption vessel was connected to a larger (100 cm
3
) gas reservoir at higher pressure in a constant temperature bath. The volumes of lines, valves and vessels were accurately determined. A quartz Bourdon gauge was used to measure the system pressure. A known mass of deaerated solvent was charged to the absorption vessel and the amount of vapor released on charging was estimated. Gas was charged incrementally to maintain a constant pressure until no additional gas was required. The change in pressure in the gas supply reservoir was used to determine the quantity consumed.
Source and Purity of Materials:
1. Ethene, min. purity 99.95%.
2. Methanol, spectrograde, actual purity unspecified.
Estimated Errors:
Solubility: δ
x
1
/x
1
= ± 0.5% (Authors)
Temperature: δ
T
/K = ± 0.01