Temperatures and enthalpies of solid-solid and melting transitions of the odd-numbered n-alkanes C21, C23, C25, C27, and C29

V Chevallier, M Bouroukba, D Petitjean…

Index: Chevallier, Virginie; Bouroukba, Mohammed; Petitjean, Dominique; Barth, Danielle; Dupuis, Paul; Dirand, Michel Journal of Chemical and Engineering Data, 2001 , vol. 46, # 5 p. 1114 - 1122

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Citation Number: 15

Abstract

Very high purity samples of normal pentacosane and heptacosane are made by synthesis: the procedures for the C25 and C27 synthesis and the original conditions of their purification, particularly using the extraction by supercritical carbon dioxide, are described. Measurements of temperatures and enthalpies of the solid-solid transitions and of the melting transition were carried out by differential scanning calorimetry on the C25 and ...