caa a22 4500 445328622 CHVBK 20180317142730.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10953-011-9688-0 doi (NATIONALLICENCE)springer-10.1007/s10953-011-9688-0 Acoustic, Viscometric, and Spectroscopic Studies of Dipropylene Glycol Monopropyl Ether with n -Alkanols at Temperatures of 288.15, 298.15, and 308.15 K [Elektronische Daten] [Amalendu Pal, Rekha Gaba, Harsh Kumar] Speeds of sound have been measured in dipropylene glycol monopropyl ether mixtures with methanol, 1-propanol, 1-pentanol, and 1-heptanol as a function of composition at 288.15, 298.15, and 308.15K and atmospheric pressure. Measurements of viscosity at 298.15K and atmospheric pressure have also been made for the same mixtures over the whole composition range. The speeds of sound were combined with our previous densitity results to obtain the isentropic compressibility κ S . The molar volumes were multiplied by the isentropic compressibilities to obtain estimates of K S,m and its excess counterparts $K_{S,m}^{\mathrm{E}}$ . The $K_{S,m}^{\mathrm{E}}$ values are negative over the entire range of composition for all mixtures. Deviations in viscosity η from the mixing relation ∑x i ln η i and excess Gibbs energies of activation for viscous flow ΔG ∗E have been derived for all of these systems. Also, from the speed of sound results, the apparent molar compressibilities $\overline{K}_{\phi ,i}^{0}$ of the components have been calculated at infinite dilution. The variations of these properties with the composition, temperature and the number of carbon atoms in the alcohol molecule are discussed in terms of molecular interactions. The experimental results have also been discussed on the basis of IR measurements. Springer Science+Business Media, LLC, 2011 Dipropylene glycol monopropyl ether nationallicence n -Alkanol nationallicence Speeds of sound nationallicence Binary mixtures nationallicence Viscosity nationallicence Pal Amalendu Department of Chemistry, Kurukshetra University, 136119, Kurukshetra, Haryana, India aut Gaba Rekha Department of Chemistry, B.R. Ambedkar National Institute of Technology, 144011, Jalandhar, Punjab, India aut Kumar Harsh Department of Chemistry, B.R. Ambedkar National Institute of Technology, 144011, Jalandhar, Punjab, India aut Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/5(2011-05-01), 786-802 0095-9782 40:5<786 2011 40 10953 https://doi.org/10.1007/s10953-011-9688-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10953-011-9688-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pal Amalendu Department of Chemistry, Kurukshetra University, 136119, Kurukshetra, Haryana, India aut NATIONALLICENCE 700 1- Gaba Rekha Department of Chemistry, B.R. Ambedkar National Institute of Technology, 144011, Jalandhar, Punjab, India aut NATIONALLICENCE 700 1- Kumar Harsh Department of Chemistry, B.R. Ambedkar National Institute of Technology, 144011, Jalandhar, Punjab, India aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Springer US; http://www.springer-ny.com 40/5(2011-05-01), 786-802 0095-9782 40:5<786 2011 40 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer