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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Ethanol with Toluene 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) Toluene (methylbenzene); C7H8; [108-88-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Mondain-Monval, P.I.; Quiquerez, J., Bull. Soc. Chim. Fr. Mem. 7, 240 (1940).
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)
25.00
298.15
0.010
0.990
0.020
0.980
hydrocarbon-rich phase
25.00
298.15
0.034
0.965
0.066
0.930
hydrocarbon-rich phase
25.00
298.15
0.041
0.956
0.078
0.908
hydrocarbon-rich phase
25.00
298.15
0.115
0.875
0.199
0.757
hydrocarbon-rich phase
25.00
298.15
0.151
0.830
0.246
0.675
hydrocarbon-rich phase
25.00
298.15
0.168
0.812
0.269
0.649
hydrocarbon-rich phase
25.00
298.15
0.255
0.700
0.354
0.486
hydrocarbon-rich phase
25.00
298.15
0.353
0.570
0.423
0.341
hydrocarbon-rich phase
25.00
298.15
0.220
0.001
0.0994
0.0002
water-rich phase
25.00
298.15
0.355
0.009
0.179
0.002
water-rich phase
25.00
298.15
0.480
0.029
0.274
0.008
water-rich phase
25.00
298.15
0.566
0.111
0.931
0.038
water-rich phase
25.00
298.15
0.564
0.200
0.445
0.079
water-rich phase
25.00
298.15
0.535
0.287
0.472
0.127
water-rich phase
25.00
298.15
0.460
0.415
0.466
0.210
water-rich phase
25.00
298.15
0.353
0.570 (a)
0.423
0.341
water-rich phase
Notes:
a
Plait point
Method/Apparatus/Procedure:
The analytical method was used. A sample of 100 mL of a ternary mixture, prepared by weight, was placed in a thermostat, agitated many times and then left for several hours to separate. The density and refractive index of each phase was measured. Inversion of density was observed.
Source and Purity of Materials:
(1) Source not specified; d(25°C,4°C)=0.7853.
(2) Obtained in the laboratory; d(24°C,4°C)=0.8622.
(3) Source not specified.
Estimated Errors:
Solubility: Not reported.
Temperature: Temp. ±0.02°C.