Home
Introduction
Search Menu
IUPAC Series (PDF)
Reference
Version History
About the Project
Disclaimer
Contact Us
Acknowledgements
IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethene with Octadecane, Eicosane or Docosane
Components:
(1) Ethene; C2H4; [74-85-1]
NIST Chemistry WebBook
for detail
(2) Octadecane, Eicosane or Docosane; C18H38, C20H42 or C22H46; [593-45-3, 112-95-8 or 629-97-0]
NIST Chemistry WebBook
for detail
Original Measurements:
Ng. S.; Harris, H.G.; Prausnitz, J.M., J. Chem. Eng. Data 1969, 14, 482-3.
Variables:
Temperature = 308.2 K to 473.2 K
Pressure = 101.3
Prepared By:
C.L. Young
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
T/K
Chemical Name
Henry's law constant, K [atm]
Mole Fraction (x
1
)
x
1
Note
308.2
Octadecane: C18H38; [593-45-3]
42.5
0.0235
1
323.2
Octadecane: C18H38; [593-45-3]
50.6
0.0198
1
343.2
Octadecane: C18H38; [593-45-3]
61.8
0.0162
1
363.2
Octadecane: C18H38; [593-45-3]
74.4
0.0134
1
373.2
Octadecane: C18H38; [593-45-3]
81.8
0.0122
1
423.2
Octadecane: C18H38; [593-45-3]
114
0.00877
1
323.2
Eicosane: C20H42; [112-95-8]
50.5
0.0198
1
343.2
Eicosane: C20H42; [112-95-8]
61.9
0.0162
1
373.2
Eicosane: C20H42; [112-95-8]
79.8
0.0125
1
393.2
Eicosane: C20H42; [112-95-8]
92.6
0.0108
1
413.2
Eicosane: C20H42; [112-95-8]
106.4
0.00940
1
333.2
Docosane: C22H46>; [629-97-0]
53.6
0.0187
1
383.2
Docosane: C22H46>; [629-97-0]
82.6
0.0121
1
408.2
Docosane: C22H46>; [629-97-0]
99.6
0.0100
1
433.2
Docosane: C22H46>; [629-97-0]
112.7
0.00887
1
453.2
Docosane: C22H46>; [629-97-0]
128
0.00781
1
473.2
Docosane: C22H46>; [629-97-0]
147
0.00680
1
Notes:
1
Calculated by compiler for a partial pressure of 101.3 kPa assuming a mole fraction equal to 1/
H
.
Method/Apparatus/Procedure:
Gas chromatographic method. Solvent supported on Chromosorb P in 6m column. Gas injected as sample, helium used as carrier gas. Henry's law constant calculated from knowledge of retention time and flow rate.
Source and Purity of Materials:
1. Matheson sample, purity greater than 99 mole per cent.
2. Matheson, Coleman and Bell sample, m.p.t.:
Octadecane 27-28.5 °C
Eicosane 35-36.5 °C
Docosane 43-45 °C
Estimated Errors:
Solubility: δ
H
/atm = ± 5%
Temperature: δ
T
/K = ± 0.01