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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Methanol with Benzene and Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Benzene; C6H6; [71-43-2]
NIST Chemistry WebBook
for detail
(3) Methanol (methyl alcohol); CH4O; [67-56-1]
NIST Chemistry WebBook
for detail
Original Measurements:
Budantseva, L.S.; Lesteva, T.M.; Nemstov, M.S., Zh. Fiz. Khim. 1976, 50, 1344. Deposited doc. 1976, VINITI 437-76.
Variables:
Temperature = 293 K
Prepared By:
A. Skrzecz
Experimental Data:
(Notes on the Nomenclature)
Compositions along the saturation curve
t/°C
T/K
Mass Fraction w
1
(compiler)
Mass Fraction w
2
(compiler)
Mole Fraction x
1
(compiler)
Mole Fraction x
2
(compiler)
20
293.2
0.176
0.811
0.331
0.626
20
293.2
0.273
0.701
0.450
0.474
20
293.2
0.359
0.599
0.528
0.362
20
293.2
0.434
0.505
0.578
0.276
20
293.2
0.516
0.392
0.614
0.191
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)
20
293.2
0.0000
0.9994
0.0000
0.9974
hydrocarbon-rich phase
20
293.2
0.0080
0.9914
0.0192
0.9782
hydrocarbon-rich phase
20
293.2
0.0190
0.9800
0.0450
0.9508
hydrocarbon-rich phase
20
293.2
0.0290
0.9690
0.0674
0.9243
hydrocarbon-rich phase
20
293.2
0.0510
0.9454
0.1145
0.8711
hydrocarbon-rich phase
20
293.2
0.0834
0.9091
0.1775
0.7941
hydrocarbon-rich phase
20
293.2
0.2658
0.7081
0.4410
0.4820
hydrocarbon-rich phase
20
293.2
0.0000
0.0017
0.0000
0.0004
water-rich phase
20
293.2
0.2441
0.0012
0.1538
0.0003
water-rich phase
20
293.2
0.4871
0.0051
0.3498
0.0015
water-rich phase
20
293.2
0.6040
0.0392
0.4814
0.0128
water-rich phase
20
293.2
0.6430
0.1470
0.5972
0.0560
water-rich phase
20
293.2
0.5678
0.3202
0.6320
0.1462
water-rich phase
20
293.2
0.2658
0.7081 a
0.4410
0.4820
water-rich phase
Notes:
a
Critical point of solubility.
Method/Apparatus/Procedure:
The titration method was used to determine binodal curve. The synthetic method was used to determine phase equilibria. The mole fraction of hydrocarbon in the charge before separation was about 0.30. After separation phases were analyzed by glc to determine methanol and hydrocarbon; concentration of water was determined by Karl Fischer method.
Source and Purity of Materials:
(1) Source not specified.
(2) Source not specified; distilled; purity>99.9%.
(3) Not specified.
Estimated Errors:
Solubility: Not reported.
Temperature: Not reported.