SDS Volume (4477)

Volume 72. Nitromethane with Water or Organic Solvents: Ternary and Quaternary Systems, p None

Original Measurements

Antosik, M.; Stryjek, R.; Fluid Phase Equilib. 71, 321-331 (1992).

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

V.P. Sazonov

Method/Apparatus/Procedure:

The analytical method was used. Liquid-liquid equilibrium was determined as described in Antosik [1]. The equilibrium cell of about 50 mL capacity, equipped with a magnetic stirrer, was sealed in a water jacket, and circulating water from a thermostat ensured temperature constancy. The three-component mixture was stirred in the equilibrium cell for about 30 min, then the mixture was left for about 1 h for complete phase separation, and samples of about 0.2 mL of each of the two phases were withdrawn from the equilibrium cell through a silicone-rubber septum using a syringe for gas chromatography analyses.

Source and Purity of Materials:

1. Source not specified; purity 99.8 mass% by GLC; 0.025 mass% water by the Karl Fischer method.
2. Isolated from turpentine and purified by fractional distillation at sub-ambient pressure; purity above 99.9 mass% by GLC.
3. Isolated from turpentine and purified by fractional distillation at sub-ambient pressure; purity above 99.9 mass% by GLC.

Estimated Errors:

Ambient temperature: control to ±0.02 K.

References

¹ Antosik, M.; J. Chem. Thermodyn. 22, 85 (1990).