Interaction Parameters of the Excess Gibbs Free Energy Between Solutes in Formamide

Abstract

Abstract: The retention values of eight organic solutes in stationary solution of formamide+ acetamide, formamide + urea and formamide + sodium perchlorate at the temperature of 298.15 Kwere measured by a gas-liquid chromatographic method(GLC.The McMillan Mayer's solution theory was used to relate the excess Gibbs free energy of the system to a se ries of pair and triplet interaction parameters. The relationship of the interaction parameters with the retention values of GLC was deduced by using the thermodynamic method.From experimental result, the values of pair and triplet interaction parameters, g_ij and g_ijj,be tween solutes have been fitted by a least square method.The information about the solute solute interaction and the effect of solvent on the interaction have been discussed.

Key words: Gibbs free energy interaction parameter, Gas liquid chromatographic method, Amide, Urea, Sodium Perchlorate

CLC Number:

O645.164

TrendMD:

BAI Tong-Chun, ZHANG Xin-Kuan, LU Yan, LU Jin-Suo. Interaction Parameters of the Excess Gibbs Free Energy Between Solutes in Formamide[J]. Chem. J. Chinese Universities, 1995, 16(5): 765.

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Interaction Parameters of the Excess Gibbs Free Energy Between Solutes in Formamide

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