Compilation - 2-Propanol with Cyclohexane and Water (IUPAC SDS Volume 69)

SDS Volume (3728)

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

Original Measurements

Plackov, D.; Stern, I.; Fluid. Phase Equilib. 71, 189 (1992).

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

A. Skrzecz

Method/Apparatus/Procedure:

Binodal compositions were determined by titration with the corresponding, less-soluble component until the appearance of turbidity. The analytical method was used for determination of tie-lines. This was based on refractive indexes and densities of the samples, combined with the oxidation of the alcohol with an excess of potassium dichromate and determination of unreduced dichromate with $\ce{NaS2O3}$. Alcohol in the organic layer was determined after extraction with water.

Source and Purity of Materials:
  1. Kemika (Zagreb); analytical grade; presumably used as received; $n$ = 1.3475, $\rho^{25} = \pu{780.8 kg m-3}$, BP = 81.1°C.
  2. Merck Alkaloid; purity not specified; presumably used as received; $n$ = 1.4232, $\rho^{25} = \pu{773.4 kg m-3}$, BP = 80.1°C.
  3. Twice distilled in the presence of $\ce{KMnO4}$.
Estimated Errors:

Ambient temperature: Composition <0.0005 mass fraction, binodal, (relative); composition ±2%, tie line.
Mass concentration (m/v) (1): Not reported.

References

1 Plackov, D.; Stern, I.; Fluid. Phase Equilib. 57, 327 (1990).

Components:
  1. 2-Propanol, $\ce{ C3H8O }$; [67-63-0] NIST WebBook
  2. Cyclohexane, $\ce{ C6H12 }$; [110-82-7] NIST WebBook
  3. Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Compositions along the saturation curve
$T$ (°C) $T$ ($\pu{K}$) $x_{1}$ $x_{2}$ w1 w2
25298.2 0.03780.9601 0.02730.9722
25298.2 0.10310.8793 0.07700.9191
25298.2 0.13590.8384 0.10310.8910
25298.2 0.19820.7497 0.15680.8308
25298.2 0.25340.6608 0.21040.7683
25298.2 0.31050.5500 0.27660.6861
25298.2 0.36320.4141 0.35960.5742
25298.2 0.38410.3260 0.41410.4922
25298.2 0.39660.2270 0.47940.3842
25298.2 0.39090.1665 0.51650.3081
25298.2 0.37470.1147 0.54430.2333
25298.2 0.35470.0856 0.55220.1866
25298.2 0.30300.0442 0.54050.1104
25298.2 0.22580.0197 0.47080.0575
25298.2 0.18808.1 x 10-3 0.42690.0258
25298.2 0.16244.3 x 10-3 0.38830.0144
25298.2 0.13142.6 x 10-3 0.33309.2 x 10-3
25298.2 0.09816 x 10-4 0.26582.3 x 10-3
25298.2 0.07904 x 10-4 0.22221.6 x 10-3
25298.2 0.05083 x 10-4 0.15131.3 x 10-3
25298.2 0.02202 x 10-4 0.06989 x 10-4

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