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:
Ethanol with Hexane (n-hexane) with Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Ethanol (ethyl alcohol); C2H6O; [64-17-5]
NIST Chemistry WebBook
for detail
(3) Hexane (n-hexane); C6H14; [110-54-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Ross,S.; Patterson, R.E., J. Chem. Eng. Data. 24, 111 (1979).
Variables:
Temperature = 298 K
Prepared By:
A. Skrzecz
Experimental Data:
(Notes on the Nomenclature)
Compositions of coexisting phases
t/°C
T/K
Mass Fraction w
1
Mass Fraction w
2
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
Comment(s)
20.0
293.15
0.000
1.000
0.0000
1.0000
hydrocarbon-rich phase
20.0
293.15
0.003
0.997
0.0056
0.9944
hydrocarbon-rich phase
20.0
293.15
0.005
0.995
0.0093
0.9907
hydrocarbon-rich phase
20.0
293.15
0.006
0.994
0.0112
0.9888
hydrocarbon-rich phase
20.0
293.15
0.008
0.992
0.0149
0.9851
hydrocarbon-rich phase
20.0
293.15
0.012
0.988
0.0222
0.9778
hydrocarbon-rich phase
20.0
293.15
0.020
0.980
0.0368
0.9632
hydrocarbon-rich phase
20.0
293.15
0.060
0.939
0.1063
0.8892
hydrocarbon-rich phase
20.0
293.15
0.132
0.862
0.2170
0.7577
hydrocarbon-rich phase
20.0
293.15
0.000
0.000
0.0000
0.0000
water-rich phase
20.0
293.15
0.232
0.000
0.1056
0.0000
water-rich phase
20.0
293.15
0.325
0.001
0.1586
0.0003
water-rich phase
20.0
293.15
0.383
0.002
0.1957
0.0005
water-rich phase
20.0
293.15
0.440
0.003
0.2358
0.0009
water-rich phase
20.0
293.15
0.518
0.006
0.2980
0.0018
water-rich phase
20.0
293.15
0.612
0.020
0.3914
0.0068
water-rich phase
20.0
293.15
0.730
0.082
0.5819
0.0349
water-rich phase
20.0
293.15
0.640
0.300
0.6710
0.1681
water-rich phase
Method/Apparatus/Procedure:
Mixtures of known composition (close to the midpoint) and mass of about 90 g were prepared by weighing into flasks with tightly fitting ground-glass stoppers. The solutions were shaken several times and placed in a thermostat for at least 24 h. Then density and surface tension of both phases as well as interfacial tension were measured.
Source and Purity of Materials:
(1) Source not specified, absolute alcohol; dried with Mg, distilled; p(20°C)=0.7895 g cm
-3
, b.p.=77.9-78.1°C, n(20°C,D)=1.3612.
(2) Source not specified, reagent grade; passed through a column of activated alumina distilled, (first and last portions of distillate were discarded; p(20°C)=0.6595 g cm
-3
, b.p.=68.4-68.5°C, n(20°C,D)=1.3749.
(3) Distilled, redistilled from KMnO
4
, acidified with phosphoric acid, redistilled, (all distillations under N
2
atmosphere).
Estimated Errors:
Solubility: Not reported.
Temperature: Temp. ±0.05°C.