Commentary and further analysis concerning 'Experimental determination of solubility and metastable zone width of 3,4-bis(3-nitrofurazan-4-yl)furoxan (DNTF) in (acetic acid plus water) systems from (298.15 K-338.15 K)'

摘要

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 (delta x(1,3)) 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 x(1) 1, DNTF was preferentially solvated by acetic acid. However in the other composition regions, DNTF is preferentially solvated by water. (C) 2018 Published by Elsevier B.V.