N 64 Nikitin, E. D. Critical properties of long-chain substances from the hypothesis of functional self-similarity [Текст] / E. D. Nikitin, P. A. Pavlov, N. S. Bogatishcheva // Fluid Phase Equilibria. - 2005. - Vol. 235, № 1. - С. 1-6 Рубрики: ФИЗИКА Кл.слова (ненормированные): CRITICAL STATE -- METHOD OF CALCULATION -- ALKANES -- ALKANOLS -- ALKANONES Аннотация: A method for the construction of the functions fitting the critical properties of homologous series is presented. The method is based on the hypothesis of functional self-similarity and the scaling behaviour of the critical constants of long-chain molecules. Equations for calculating the critical temperatures and pressures of the homologous series with the common formula H(CH2)nR, where R is a radical have been obtained. The parameters of the equations have been determined from experimental data for six homologous series. The presented method allows predicting the critical temperatures or pressures of any member of a homologous series of the given type if the critical temperature/pressure of one substance, which belongs to this series, is known. The proposed method provides better accuracy in comparison with currently used group-contribution methods for most of the homologous series considered. \\\\Expert2\\NBO\\Fluid Phase Equilibria\\2005. v.235, p.1-6.pdf |
N 64 Nikitin, E. D. Critical temperatures and pressures of 1-alkanols with 13 to 22 carbon atoms / E. D. Nikitin, P. A. Pavlov, A. P. Popov // Fluid Phase Equilibria. - 1998. - Vol.149, №1-2. - С. 223-232 Рубрики: ФИЗИКА Кл.слова (ненормированные): CRITICAL STATE -- VAPOR-LIQUID -- 1-ALKANOLS Аннотация: The paper gives the results of measuring the critical temperatures and pressures of thermally unstable 1-alkanols CnH2n+1OH with a number of carbon atoms n=13–18,20,22. The method of pulse heating of a wire probe located in the liquid under investigation has been used. Equations that correlate the critical temperatures and pressures of 1-alkanols with the number of carbon atoms in a molecule have been obtained. The results of measurements are compared with the values predicted by various methods. The acentric factors of 1-alkanols have been calculated |
N 64 Nikitin, E. D. Corrigendum to “Critical temperatures and pressures of 1-alkanols with 13 to 22 carbon atoms” [Fluid Phase Equilibria, 149 (1998) 223–232] / E. D. Nikitin, P. A. Pavlov, A. P. Popov // Fluid Phase Equilibria. - 2000. - Vol.168, №2. - С. 281 Рубрики: ФИЗИКА Кл.слова (ненормированные): CRITICAL TEMPERATURES -- 1-ALKANOLS -- CRITICAL PRESSURES |
N 64 Nikitin, E. D. Critical properties of long-chain substances from the hypothesis of functional self-similarity [Текст] / E. D. Nikitin, P. A. Pavlov, N. S. Bogatishcheva // Fluid Phase Equilibria. - 2005. - Vol. 235, № 1. - С. 1-6 Рубрики: ФИЗИКА Кл.слова (ненормированные): CRITICAL STATE -- METHOD OF CALCULATION -- ALKANES -- ALKANOLS -- ALKANONES Аннотация: A method for the construction of the functions fitting the critical properties of homologous series is presented. The method is based on the hypothesis of functional self-similarity and the scaling behaviour of the critical constants of long-chain molecules. Equations for calculating the critical temperatures and pressures of the homologous series with the common formula H(CH2)nR, where R is a radical have been obtained. The parameters of the equations have been determined from experimental data for six homologous series. The presented method allows predicting the critical temperatures or pressures of any member of a homologous series of the given type if the critical temperature/pressure of one substance, which belongs to this series, is known. The proposed method provides better accuracy in comparison with currently used group-contribution methods for most of the homologous series considered. \\\\Expert2\\NBO\\Fluid Phase Equilibria\\2005. v.235, p.1-6.pdf |
N 64 Nikitin, E. D. Critical temperatures and pressures of 1-alkanols with 13 to 22 carbon atoms / E. D. Nikitin, P. A. Pavlov, A. P. Popov // Fluid Phase Equilibria. - 1998. - Vol.149, №1-2. - С. 223-232 Рубрики: ФИЗИКА Кл.слова (ненормированные): CRITICAL STATE -- VAPOR-LIQUID -- 1-ALKANOLS Аннотация: The paper gives the results of measuring the critical temperatures and pressures of thermally unstable 1-alkanols CnH2n+1OH with a number of carbon atoms n=13–18,20,22. The method of pulse heating of a wire probe located in the liquid under investigation has been used. Equations that correlate the critical temperatures and pressures of 1-alkanols with the number of carbon atoms in a molecule have been obtained. The results of measurements are compared with the values predicted by various methods. The acentric factors of 1-alkanols have been calculated |
N 64 Nikitin, E. D. Corrigendum to “Critical temperatures and pressures of 1-alkanols with 13 to 22 carbon atoms” [Fluid Phase Equilibria, 149 (1998) 223–232] / E. D. Nikitin, P. A. Pavlov, A. P. Popov // Fluid Phase Equilibria. - 2000. - Vol.168, №2. - С. 281 Рубрики: ФИЗИКА Кл.слова (ненормированные): CRITICAL TEMPERATURES -- 1-ALKANOLS -- CRITICAL PRESSURES |