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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethanol with Cyclohexane and Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Cyclohexane; C6H12; [110-82-7]
NIST Chemistry WebBook
for detail
(3) Ethanol (ethyl alcohol); C2H6O; [64-17-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Tarasenkov, D.N.; Paulsen, I.A., Acta Physicochim. URSS 11, 75 (1939).
Variables:
Temperature = 273 K - 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)
0.0
273.15
0.1449
0.8488
0.2316
0.7426
0.0
273.15
0.2478
0.7302
0.3521
0.5680
0.0
273.15
0.3062
0.6762
0.4245
0.5131
0.0
273.15
0.5003
0.4699
0.6001
0.3085
0.0
273.15
0.6214
0.3250
0.6636
0.1900
0.0
273.15
0.7198
0.1460
0.6298
0.0699
0.0
273.15
0.7184
0.1171
0.5971
0.0533
0.0
273.15
0.6863
0.0465
0.4920
0.0182
0.0
273.15
0.6447
0.0247
0.4288
0.0090
0.0
273.15
0.5441
0.0122
0.3228
0.0040
0.0
273.15
0.3402
0.0023
0.1682
0.0006
20.0
298.15
0.3310
0.6480
0.4477
0.4797
20.0
298.15
0.4818
0.4754
0.5658
0.3056
20.0
298.15
0.5524
0.3945
0.6110
0.2388
20.0
298.15
0.5911
0.3497
0.6329
0.2050
20.0
298.15
0.6491
0.2614
0.6357
0.1401
20.0
298.15
0.6920
0.1627
0.6004
0.0773
20.0
298.15
0.6845
0.0885
0.5212
0.0369
20.0
298.15
0.6007
0.0217
0.3806
0.0075
Method/Apparatus/Procedure:
A titration method similar to that in Ref. 1 was used. A flask of 100 mL capacity containing a binary cyclohexane-alcohol mixture of known composition, by weight, was placed in a thermostat. The mixture was titrated with water from a microburette with a scale of 0.01 mL, until opalescence, emulation or turbidity was observed. Samples of the same binary composition were titrated several times.
Source and Purity of Materials:
(1) Source not specified; purity of 99.97% for 3 points of the lower alcohol concentration at each temperature and purity of 92.64% for all other points.
(2) Source not specified; distilled; b.p.=80.9°C, d(20°C,4°C)=0.7744.
(3) Source not specified.
Estimated Errors:
Solubility: Not reported.
Temperature: Temp. ±0.05°C.
References:
1
R. E. Washburn, J. Am. Soc. 53, 3237 (1931).