SDS Volume

Volume 69. Ternary Alcohol-Hydrocarbon-Water Systems, p None

Source Publication

Letcher, T. M.; Siswana, P. M.; Fluid Phase Equilib. 74, 203 (1992).

Conditions:

Room Temp: 298 $\pu{K}$

Compiler:

A. Skrzecz

Methodology:

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 by the refractive index method reported in [2] and a complementary method using the Karl Fischer titrations as reported in [3].

Sample Information:
  1. Merck, AR grade; distilled, dried by refluxing with $\ce{Mg}$ and $\ce{I2}$; purity better than 99.6 mole% by GLC; $d$ = 0.79979, $n$ = 1.3837.
  2. BDH; used as received; purity better than $\pu{99.6 mole%}$ by GLC.
  3. Source not specified.
Measurement Errors:

Ambient temperature: Estimated comp. 0.005 mole fraction on the binodal curve and 0.01 mole fraction for tie lines (estimated by the authors).
Mass concentration (m/v) (1): Not reported.

Methodology Citations

1 Letcher, T. M.; Wootton, S.; Shuttleworth, B.; Heyward, C.; J. Chem. Thermodyn 18, 1037 (1986).
2 Briggs; S. W.; Comings, E. W.; Ind. Eng. Chem. 35, 411 (1943).
3 Letcher, T. M.; Siswana, P. M.; van der Watt, P.; Radloff, S.; J. Chem. Thermodyn. 21, 1053 (1989).

System Components:
  1. 1-Propanol, $\ce{ C3H8O }$; [71-23-8] NIST WebBook
  2. Toluene, $\ce{ C7H8 }$; [108-88-3] NIST WebBook
  3. Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
$T$ (°C) $T$ ($\pu{K}$) $x_{1}$ $x_{2}$ w1 w2
25.0298.2 0.0000.999 0.00.9998
25.0298.2 0.3150.600 0.2500.730
25.0298.2 0.3680.490 0.3170.647
25.0298.2 0.4100.365 0.3950.540
25.0298.2 0.4300.270 0.4600.443
25.0298.2 0.4280.182 0.5190.339
25.0298.2 0.3830.100 0.5540.222
25.0298.2 0.2900.044 0.5210.121
25.0298.2 0.0000.000 0.00.000
25.0298.2 0.0490.000 0.1470.000
25.0298.2 0.0570.000 0.1680.000
25.0298.2 0.0640.000 0.1860.000
25.0298.2 0.0720.000 0.2060.000
25.0298.2 0.0800.000 0.2250.000
25.0298.2 0.0951 x 10-3 0.2584 x 10-3
25.0298.2 0.1352 x 10-3 0.3408 x 10-3

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