IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Acetonitrile with N,N-Diphenyldecanamide

Components:
   (1) Acetonitrile; C2H3N; [75-05-8]  NIST Chemistry WebBook for detail
   (2) N,N-Diphenyldecanamide; C22H29NO; []  NIST Chemistry WebBook for detail

Original Measurements:
   Ralston, A.W.; Hoerr, C.W.; Pool, W.O., J. Org. Chem. 8, 473-88 (1943).

Variables:
   Temperature = 283 K to 315 K

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

Experimental Remarks:

   The solubilities of N,N-diphenyldecanamide (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 N,N-diphenyldecanamide (2) in acetonitrile (1)
t/°C	T/K	g₂/100 g solution	10² * Mass Fraction w₂ (compiler)	Mole Fraction x₂ (compiler)
10.0	283.2	39.3	28.2	0.048
15.9*	289.1	-	39.8	0.077
30.0	303.2	252	71.6	0.242
31.5*	304.7	-	74.3	0.268
39.5*	312.7	-	87.9	0.480
41.6*	314.8	-	91.1	0.565

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

Method/Apparatus/Procedure:
   The synthetic method was used. The solubilities of (2) in (1) were determined in sealed tubes by the method and apparatus described elsewhere.^1,2

Source and Purity of Materials:
   (1) Source not specified; best grade reagent; dried and twice distilled.
   (2) Prepared by heating the decanoyl chloride with diphenylamine for 2 hours to 4 hours at 135 °C to 145 °C; purified by recrystallization; freezing point = 47.5 °C.

Estimated Errors:

   Temperature: ± 0.2 K.

References:
   1. A. W. Ralston, C. W. Hoerr, and E. J. Hoffman, J. Am. Chem. Soc. 64, 1516 (1942).
   2. C. W. Hoerr and A. W. Ralston, J. Am. Chem. Soc. 64, 2824 (1942).