Prediction methods for the critical temperature of n-alkanes

摘要

The critical temperature of heavy n-alkanes is predicted from the behaviour corresponding to their melting temperature and from several empirical correlations. The prediction methods for the critical temperature of n-alkanes are reviewed including the new experimental data currently available. The results obtained for T_c~∞, the limiting value of the critical temperature at n → ∞, are compared. The calculated and experimental values of T_c coincide in the range n = 5-36 within the actual uncertainties.