Components:

(1) Acetonitrile, C₂H₃N; [75-05-8] NIST WebBook
(2) Carbon disulfide, CS₂; [75-15-0] NIST WebBook

Original Measurements

Govindaraian, K.; Subramanyam, S. V.; Gopal, E. S. R.; J. Chem. Phys. 56, 4235 (1972).

Variables:

Ambient temperature: 320 - 323 K

Prepared by:

V.P. Sazonov

Method/Apparatus/Procedure:

The synthetic method was used. The visual observation of the phase-transition temperatures has been used as in Viswanathan et al.¹ The samples were all raised to the one phase region, and after allowing them to stand at this temperature for about an hour, gradual cooling in steps of 10 mdeg was started. Deep brown coloration near x_c was observed, when viewed through transmitted light, and the opalescence was very strong because of the large difference in the refractive indices of the liquids. They were reproduced in a slow heating cycle also.

Source and Purity of Materials:

1. E. Merck Co., Germany; not purified; water content certified to be less than 0.1 mole%.
2. E. Merck Co., Germany; not purified.

Estimated Errors:

Ambient temperature: ±0.05 K.

References

¹ Viswanathan, B.; Gambhir, R. D.; Gopal, E. S. R.; J. Chem. Phys. 53, 4405 (1970).