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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethene with Ethanol and Water
Components:
(1) Ethene; C2H4; [74-85-1]
NIST Chemistry WebBook
for detail
(2) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(3) Ethanol, 2, 2 ' , 2 ' '-nitrilotris-, (Triethanolamine); C6H15NO3; [102-71-6]
NIST Chemistry WebBook
for detail
Original Measurements:
Yano, T.; Kidaka, T.; Miyamoto, H.; Murakami, T., Proc. Soc. Chem. Engrs, Japan (Osaka), Oct. 14, 1968, 89-90.
Variables:
Temperature = 298.15 K
Pressure = 101.325 kPa
Concentration = 0 - 1 (mole fraction Alcohol,
x
'
2
Prepared By:
W. Hayduk
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
t/°C
T/K
Ostwald coefficient L [cm
3
gas (cm
3
solvent)
&#]
Ostwald Note
Mole Fraction (x
1
)
x
1
Note
Mole Fraction (x
2
)
x
2
Note
Solubility [P = 101.325, x
1
]
Solubility Note
25.0
298.15
0.122
2
0.0000876
1
0.0 (water)
Alcohol in Mixed Solvent
0.0000904
2
25.0
298.15
0.270
2
0.000279
1
0.2
Alcohol in Mixed Solvent
0.000291
2
25.0
298.15
0.633
2
0.000847
1
0.4
Alcohol in Mixed Solvent
0.000892
2
25.0
298.15
1.22
2
0.00199
1
0.6
Alcohol in Mixed Solvent
0.00212
2
25.0
298.15
2.15
2
0.00351
1
0.8
Alcohol in Mixed Solvent
0.00373
2
25.0
298.15
2.52
2
0.00558
1
1.0 (alcohol)
Alcohol in Mixed Solvent
0.00605
2
Notes:
1
Although not specifically stated in the paper, it is assumed that the mole fraction solubility,
x
, is for a total pressure of 101.325 kPa.
2
The solubility corresponding to a gas partial pressure of 101.325 kPa was calculated by the compiler; Raoult's law was assumed to apply to the mixed solvent solution.
Method/Apparatus/Procedure:
A glass apparatus was employed in which the uptake of gas by a known volume of solvent in a dissolution cell was volumetrically determined. The gas was displaced by mercury as the gas dissolved at constant pressure. A magnetically operated gas circulating pump and bubbling tip were provided for bubbling the gas through the solvent in the dissolution cell.
Source and Purity of Materials:
Sources and purities not given.
Estimated Errors:
Solubility: δ x
1
/x
1
= ± 0.03 (Compiler)