Components:

(1) Acetonitrile, C₂H₃N; [75-05-8] NIST WebBook
(2) Octadecanenitrile, C₁₈H₃₅N; [638-65-3] NIST WebBook

Original Measurements

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

Variables:

Ambient temperature: 273 - 309 K

Prepared by:

N.V. Sazonov, V.P. Sazonov

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 nitriles 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 octadecanoic acid over aluminium oxide in the presence of ammonia at 673 K; purified by several crystallization; freezing point = 40.88°C.

Estimated Errors:

Ambient temperature: ±0.2 K and ±0.4 K (below 248 K).