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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
1-Proponal with Mesitylene (1,3,5-trimethylbenzene) and Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) 1-Proponal (n-propanol, propyl alcohol, n-propyl alcohol); C3H8O; [71-23-8]
NIST Chemistry WebBook
for detail
(3) Mesitylene (1,3,5-trimethylbenzene); C9H12; [108-67-8]
NIST Chemistry WebBook
for detail
Original Measurements:
Letcher, T.M.; Siswana, P.M., Fluid Phase Equilib. 74, 203 (1992).
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
(compiler)
Mass Fraction w
2
(compiler)
Mole Fraction x
1
Mole Fraction x
2
25.0
298.2
0.000
0.000
0.000
0.000
25.0
298.2
0.201
0.000
0.070
0.000
25.0
298.2
0.299
0.005
0.114
0.001
25.0
298.2
0.388
0.028
0.165
0.006
25.0
298.2
0.408
0.036
0.179
0.008
25.0
298.2
0.457
0.067
0.220
0.016
25.0
298.2
0.518
0.130
0.295
0.037
25.0
298.2
0.539
0.230
0.379
0.081
25.0
298.2
0.507
0.337
0.424
0.141
25.0
298.2
0.446
0.447
0.435
0.218
25.0
298.2
0.362
0.574
0.420
0.333
25.0
298.2
0.288
0.672
0.381
0.444
25.0
298.2
0.196
0.785
0.300
0.601
25.0
298.2
0.099
0.895
0.175
0.789
25.0
298.2
0.049
0.946
0.092
0.880
25.0
298.2
0.000
0.9998
0.000
0.999
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)
25.0
298.2
0.000
0.9998
0.000
0.999
hydrocarbon-rich phase
25.0
298.2
0.101
0.892
0.177
0.782
hydrocarbon-rich phase
25.0
298.2
0.187
0.795
0.289
0.615
hydrocarbon-rich phase
25.0
298.2
0.251
0.718
0.352
0.503
hydrocarbon-rich phase
25.0
298.2
0.370
0.562
0.422
0.320
hydrocarbon-rich phase
25.0
298.2
0.418
0.493
0.434
0.256
hydrocarbon-rich phase
25.0
298.2
0.490
0.366
0.425
0.159
hydrocarbon-rich phase
25.0
298.2
0.529
0.250
0.380
0.090
hydrocarbon-rich phase
25.0
298.2
0.000
0.000
0.000
0.000
water-rich phase
25.0
298.2
0.163
0.000
0.055
0.000
water-rich phase
25.0
298.2
0.201
0.000
0.070
0.000
water-rich phase
25.0
298.2
0.241
0.000
0.087
0.000
water-rich phase
25.0
298.2
0.265
0.005
0.098
0.001
water-rich phase
25.0
298.2
0.280
0.005
0.105
0.001
water-rich phase
25.0
298.2
0.304
0.010
0.117
0.002
water-rich phase
25.0
298.2
0.338
0.015
0.135
0.003
water-rich phase
Method/Apparatus/Procedure:
The points on the binodal curve were determined by the formation of a cloudy mixture on shaking after the addition of a known mass of one component to a mixture of known masses of the other two components. Precision weighing syringes were used as described in Ref. 1. The tie line compositions were determined by the refractive index method reported in Ref. 2 and complementary method using the Karl Fishcer titrations as reported in Ref. 3.
Source and Purity of Materials:
(1) Merck, AR grade; distilled, dried by refluxing with Mg and I
2
; purity better than 99.6 mole % by glc; d=0.79979, n=1.3837.
(2) BDH; used as received; purity better than 99.6 mole % glc.
(3) Source not specified.
Estimated Errors:
Solubility: Not reported.
Temperature: Estimated comp. 0.005 mole fraction on the binodal curve and 0.01 mole fraction for tie lines (estimated by the authors).
References:
1
T. M. Letcher, S. Wootten, B. Shuttleworth, and C. Heward, J. Chem. Thermodyn. 18, 1037 (1986).
2
S. W. Briggs and E. W. Comings, Ind. Eng. Chem. 35, 411 (1943).
3
T. M. Letcher, P. M. Siswana, P. Van der Watt, and S. Radloff, J. Chem. Thermodyn. 21, 1053 (1989).