Abstract

Errors were discovered regarding the published equation coefficients of Hou and coworkers [Fluid Phase Equilibria 408 (2016) 123–131] for mathematically describing the solubility behavior of 3,4-bis(3-nitrofurazan-4-yl)furoxan (DNTF) in acetic acid + water mixture using the NRTL model. Larger differences were found between our back-calculated data and those reported in the authors' published paper. The expression of NRTL model was corrected and the equation parameters were re-regressed. Furthermore, the preferential solvation parameters (δx1,3) of DNTF in the solvent mixture of acetic acid (1) + water (2) were derived from their available solubility data using the inverse Kirkwood–Buff integrals method. Within the composition 0.25 < x1 < 1, DNTF was preferentially solvated by acetic acid. However in the other composition regions, DNTF is preferentially solvated by water.

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