Study of the liquid-vapor critical temperatures for methyladamantanes and their mixtures with cyclohexane

The liquid-vapor critical temperatures of individual 1,3-dimethyl-and 1,3,5-trimethyladamantanes and their binary mixtures with cyclohexane were determined over the entire range of composition by means of the ampule method. It was found that an excess of the critical temperatures over calculated values reached 20 K for both mixtures studied. The predictive capabilities of several calculation methods are discussed.