Abstract
Mathematical representations reported by Liu et al. for the modified version of the combined nearly ideal binary solvent (NIBS)/Redlich-Kister model are carefully examined in regards to the model’s ability to predict the solubility of 4-nitropyrazole (4-NP) dissolved in binary aqueous mixtures of n-butanol, n-pentanol, isobutanol and isoamyl alcohol mixtures. The model constants reported by Liu et al. were found to give calculated mole fraction solubilities that produced very large back-calculational errors.
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