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 Nonane (n-nonane) and 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) Nonane (n-nonane); C9H20; [111-84-2]
NIST Chemistry WebBook
for detail
Original Measurements:
Vorobeva, A.I.; Karapetyants, M., Kh., Zh. Fiz. Khim. 40, 3018 (1966).
Variables:
Temperature = 298 K
Prepared By:
A. Skrzecz
Experimental Data:
(Notes on the Nomenclature)
Compositions along the saturation curve
t/°C
T/K
Mass Fraction w
1
Mass Fraction w
2
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
25
298.2
0.000
0.999
0.0000
0.9929
25
298.2
0.094
0.904
0.2218
0.7661
25
298.2
0.133
0.864
0.2949
0.6881
25
298.2
0.177
0.819
0.3677
0.6111
25
298.2
0.253
0.740
0.4714
0.4952
25
298.2
0.303
0.689
0.5307
0.4335
25
298.2
0.352
0.638
0.5802
0.3777
25
298.2
0.399
0.588
0.6201
0.3282
25
298.2
0.493
0.491
0.6941
0.2483
25
298.2
0.605
0.368
0.7504
0.1640
25
298.2
0.664
0.302
0.7726
0.1262
25
298.2
0.753
0.185
0.7699
0.0679
25
298.2
0.777
0.147
0.7587
0.0516
25
298.2
0.793
0.111
0.7354
0.0370
25
298.2
0.798
0.086
0.7090
0.0274
25
298.2
0.789
0.055
0.6533
0.0164
25
298.2
0.788
0.054
0.6505
0.0160
25
298.2
0.718
0.017
0.5122
0.0044
25
298.2
0.637
0.007
0.4110
0.0016
25
298.2
0.568
0.003
0.3409
0.0006
Compositions of coexisting phases
t/°C
T/K
Mass Fraction w
1
(compiler)
Mass Fraction w
2
(compiler)
Mole Fraction x
1
Mole Fraction x
2
Comment(s)
25
298.2
0.000
1.000
0.000
1.000
hydrocarbon-rich phase
25
298.2
0.024
0.976
0.064
0.936
hydrocarbon-rich phase
25
298.2
0.048
0.951
0.122
0.871
hydrocarbon-rich phase
25
298.2
0.116
0.882
0.265
0.723
hydrocarbon-rich phase
25
298.2
0.136
0.861
0.300
0.683
hydrocarbon-rich phase
25
298.2
0.184
0.811
0.377
0.597
hydrocarbon-rich phase
25
298.2
0.280
0.713
0.505
0.462
hydrocarbon-rich phase
25
298.2
0.295
0.697
0.521
0.442
hydrocarbon-rich phase
25
298.2
0.360
0.630
0.588
0.370
hydrocarbon-rich phase
25
298.2
0.764
0.036
0.593
0.010
water-rich phase
25
298.2
0.796
0.068
0.681
0.021
water-rich phase
25
298.2
0.786
0.131
0.752
0.045
water-rich phase
25
298.2
0.682
0.280
0.775
0.114
water-rich phase
25
298.2
0.650
0.318
0.768
0.135
water-rich phase
25
298.2
0.588
0.388
0.745
0.177
water-rich phase
25
298.2
0.466
0.518
0.672
0.268
water-rich phase
25
298.2
0.454
0.531
0.665
0.279
water-rich phase
25
298.2
0.360
0.630
0.588
0.370
water-rich phase
Method/Apparatus/Procedure:
The titration method, Ref. 1, was used to determine solubility of the mixtures. The third component was added to the binary homogeneous mixture until cloudiness was first observed. Density of the saturated mixtures was measured; these results were graphed. To obtain equilibrium, ternary mixtures were stirred in a thermostat vessel for several hours. After phase separation, the density of each phase was measured and composition was determined from the graphs prepared earlier. Concentration at the critical point was found by method described in Ref. 2. Water included in ethanol was taken into account in all measurements.
Source and Purity of Materials:
(1) Source not specified, "rectificate grade," distilled; water concentration was determined by the Karl Fischer method.
(2) Source not specified; b.p.=125.5°C, n(20°C,D)=1.3976.
(3) Source not specified.
Estimated Errors:
Solubility: Not reported.
Temperature: Solubility ±0.001 mass fraction.
References:
1
W. D. Bancroft, Phys. Rev. 3, 21 (1896).
2
E. N. Zilberman, Zh. Fiz. Khim. 26, 1458 (1952).