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Phase Diagram Study of Succinonitrile-Vanillin Organic Alloy System

Singh, Jayram and Gupta, Preeti and Das, SS and Singh, NB (2014) Phase Diagram Study of Succinonitrile-Vanillin Organic Alloy System. In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 605 (1). pp. 240-258.

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Official URL: http://dx.doi.org/10.1080/15421406.2014.905034


Phase diagram studies of succinonitrile-vanillin system show the formation of 2:1 congruent melting type compound. Crystallization velocities of pure components, succinonitrile-vanillin complex, and two eutectics have been determined at different undercoolings. On the basis of heat of fusion measurements, excess thermodynamic functions have been calculated. Microstructural studies revealed that impurities modify the morphology. FTIR spectral studies and computer simulation have shown the existence of hydrogen bonding in the eutectics and the congruent melting compound. On the basis of experimental results, the mechanism of formation of eutectics and its solidification behavior are discussed.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to the TAYLOR & FRANCIS LTD, 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
Keywords: excess functions; Enthalpy of fusion; phase equilibria; eutectic; entropy of fusion
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 14 Feb 2015 13:35
Last Modified: 14 Feb 2015 13:35
URI: http://eprints.iisc.ac.in/id/eprint/50820

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