Components:

(1) Acetonitrile, C2H3N; [75-05-8] NIST WebBook
(2) Heptane, C7H16; [142-82-5] NIST WebBook

Original Measurements

Comish, R. E.; Archibald, R. C.; Murphy, E. A.; Evans, H. M.; Ind. Eng. Chem. 26, 397-406 (1934).

Variables:

Ambient temperature: 357 K

Prepared by:

N.V. Sazonov, V.P. Sazonov

Method/Apparatus/Procedure:

The synthetic method was used. Determinations were made in test tubes, which were heated and allowed to cool slowly in air. Thermometers were roughly calibrated.

Source and Purity of Materials:
  1. Prepared from sodium cyanide and dimethyl sulfate; the crude product was distilled and successively washed with solid sodium hydroxide and P2O5; carefully fractionated in a 6.09 m column; d(20°C,4°C)=0.782 15.
  2. Source not specified; commercial high-grade reagent.
Estimated Errors:

Ambient temperature: Not reported.
Mass concentration (m/v) (1): Not reported.

Experimental Values:
Note: The upper critical solution temperature (UCST) was reported to be 84.0°C (357.2 K, compilers).
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