IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Acetonitrile with Decanenitrile

Components:
   (1) Decanenitrile; C10H19N; [1975-78-6]  NIST Chemistry WebBook for detail
   (2) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Hoerr, C.W.; Binkerd, E.F.; Pool, W.O.; Ralston, A.W., J. Org. Chem. 9, 68-80 (1944).

Variables:
   Temperature = 233 K to 253 K

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

Experimental Remarks:

   The solubilities of decanenitrile (2) in acetonitrile (1) in mass percent over the indicated temperature range were reported in graphical form and in a table.

Experimental Data:   (Notes on the Nomenclature)

Solubility of decanenitrile (2) in acetonitrile (1)
t/°C	T/K	g₂/100 g solution	10² * Mass Fraction w₂ (compiler)	Mole Fraction x₂ (compiler)
-40.0	233.2	15.6	13.5	0.040
-37.1*	236.1	-	15.0	0.045
-32.1*	241.1	-	20.9	0.066
-30.5*	242.7	-	28.4	0.096
-28.2*	245.0	-	43.6	0.172
-26.4*	246.8	-	56.8	0.260
-23.5*	249.7	-	75.0	0.446
-20.0	253.2	730	87.9	0.661

Notes:
   ^*  The compiler extracted these data from the published graphs.

Method/Apparatus/Procedure:
   The synthetic method was used. Solution temperatures were determined by cooling 3 to 5 g portions of solution in 1 cm × 15 cm test tubes, which were placed in an air-bath. The latter was immersed in an acetone-bath, which was cooled with solid carbon dioxide. Temperature within the samples was measured by means of a potentiometer with an iron-constantan thermocouple. As the nitrile crystallized from solution upon cooling, the temperature of the air-bath was raised gradually until the mixtures redissolved.

Source and Purity of Materials:
   (1) Source not specified; best grade reagent; dried and twice distilled.
   (2) Prepared by passing decanoic acid over aluminium oxide in the presence of ammonia at 673 °C; dried and purified by vacuum distillation in a Stedman packed column; freezing point = –14.46 °C.

Estimated Errors:

   Temperature: ± 0.4 K (below 248 K), ± 0.2 K (above 248 K).