The critical pressures and the critical temperatures of normal alkanes CnH2n+2 with carbon numbers 40,44, and 60 have been measured by the pulse-heating technique. Anew method of calculation of the correction factors in pulse-heating experiments has been suggested. The results of earlier experiments (ED. Nikitin, P.A. Pavlov, A.P. Popov, Fluid Phase Equilib., 141, 1997, pp. 155-164.) for n-alkanes with n=19, 20, 21, 22, 23, 24, 26, 28, 30, and 36 have been recalculated using this method. Equations for the estimation of the critical temperatures and pressures of normal alkanes (n >= 5) have been suggested. The experimental critical properties have been compared with the estimations made by the Constantinou/Gani method and equations developed by Lemmon and Goodwin. (c) 2014 Elsevier B.V. All rights reserved.