Critical temperatures of mixtures of 1, 3-dimetyladamantane and 1, 3, 5-trimetyladamantane with toluene. Methods of prediction the critical temperatures of binary mixtures of cyclanes with hydrocarbons

The critical (liquid&vapor) temperatures of toluene with 1,3&dimethyl& and 1,3,5&trimetyladamantanes binary mixtures were determined by means of the ampoule method. It is shown that a mixture of toluene with metyladamantanes characterized by rather high values of the excess critical temperatures, whereas metyladamantanes only mixtures dependence of the critical temperature as a function of the mass and the molar composition is almost linear. Efficiency of different approximation and prediction models in the application to the critical (liquid&vapor) temperatures of binary mixtures of cyclanes with hydrocarbons different classes was estimated.