Open AccessExcess molar volumes of 1,3 propanediol + (C1-C5) alkan-1-ols: Application of cubic EOS
Author(s) -
Mohammad Almasi,
Ladan Khosravi
Publication year - 2012
Publication title -
journal of the serbian chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 45
eISSN - 1820-7421
pISSN - 0352-5139
DOI - 10.2298/jsc110616194a
Subject(s) - molar , alcohol , methanol , equation of state , atmospheric pressure , binary number , thermodynamics , chemistry , binary system , mixing (physics) , butanol , ethanol , bar (unit) , materials science , organic chemistry , medicine , physics , oceanography , arithmetic , mathematics , dentistry , quantum mechanics , meteorology , geology
Densities of the binary mixtures consist of methanol, ethanol, 1- propanol, 1-butanol and 1-pentanol with 1,3 Propanediol were measured at temperatures (293.15, 298.15, 303.15 and 313.15) K and atmospheric pressure. Measurements have been made over the full range of compositions and for the pure compounds by using a vibrating tube densimeter. Excess molar volumes have been obtained from these experimental results and were fitted to a Redlich-Kister type expansion. The results were interpreted in terms of molecular interactions and structural factors of the alcohols. It was observed that an increase of the alcohol carbon chain length led to lower interactions on mixing. The Peng-Robinson-Stryjek-Vera (PRSV) equation of state has been used to correlate the binary excess molar volumes