IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Acetonitrile with 1-Decanol

   (1) 1-Decanol; C10H22O; [112-30-1]  NIST Chemistry WebBook for detail
   (2) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Szydlowski, J.; Szykula, M., Fluid Phase Equilib. 154, 79 (1999).

   Temperature = 295 K to 297 K

Prepared By:
   Valerii P. Sazonov and Nikolai V. Sazonov

Experimental Remarks:

   The upper critical solution temperature was reported to be 296.61 ± 0.016 K (23.46 °C, compilers) at xc = 0.767 ± 0.002 (100 w = 46.0, compilers).

Experimental Data:   (Notes on the Nomenclature)
Mutual solubility of acetonitrile (1) and 1-decanol (2)
t/°CT/K102 * Mass Fraction w1 (compiler) Mole Fraction x1Comment(s)
21.92295.0733.50.660Alcohol-rich phase
22.19295.34--Alcohol-rich phase
22.73295.88--Alcohol-rich phase
22.84295.9936.60.690Alcohol-rich phase
23.02296.17--Alcohol-rich phase
23.14296.29--Alcohol-rich phase
23.30296.45--Alcohol-rich phase
23.33296.48--Alcohol-rich phase
23.36296.5140.00.720Alcohol-rich phase
23.42296.5743.20.746Alcohol-rich phase
23.44296.59--Alcohol-rich phase
23.45296.60--Alcohol-rich phase
23.47296.6245.10.760Alcohol-rich phase
21.92295.07--Acetonitrile-rich phase
22.19295.3463.00.868Acetonitrile-rich phase
22.73295.8859.50.850Acetonitrile-rich phase
22.84295.99--Acetonitrile-rich phase
23.02296.1757.70.840Acetonitrile-rich phase
23.14296.2955.90.835Acetonitrile-rich phase
23.30296.4553.00.830Acetonitrile-rich phase
23.33296.4851.7.0.813Acetonitrile-rich phase
23.36296.51--Acetonitrile-rich phase
23.42296.57--Acetonitrile-rich phase
23.44296.5949.10.805Acetonitrile-rich phase
23.45296.6047.90.788Acetonitrile-rich phase
23.47296.62--Acetonitrile-rich phase
   The synthetic method was used. A simplified version of the apparatus described elsewhere was used.1 Temperature was changed at the rate < 0.01 K/min and there was no visible influence of the rate on the transition temperature up to the rate 0.1 K/min. Due to the very weak turbidity a long capillary cell was employed. A 5 mW Polythec HeNe laser was used as a probe for detecting the phase separation.

Source and Purity of Materials:
   (1) Byk-Malinckrodt; AR; purified by a column distillation; purity of the collected fractions at least 99.9 mole % by GLC.
   (2) Aldrich; dried over molecular sieves and distilled.

Estimated Errors:

   Temperature: ± 5 mK

   1. J. Szydlowski, L. P. Rebelo, W. A. Van Hook, Rev. Sci. Instrum. 63, 1717 (1992).