Abstract
The enthalpies of solution of tetra-n-butylammonium bromide have been measured in mixtures of formamide (F) with water, N-methylformamide (NMF) with water, N,N-dimethylformamide (DMF) with water, F with NMF, DMF with F, and NMF with DMF at 25°C in the whole mole-fraction range. The enthalpies of solution vs composition profiles show a maximum value in the DMF-H2O and in the DMF-F systems. In the F-NMF and NMF-DMF mixturesn-Bu4NBr displays a nearly ideal behavior, whereas in the other solvent systems the excess enthalpy of solution deviates substantially from zero.
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de Visser, C., Somsen, G. Enthalpies of solution of tetra-n-butylammonium bromide in binary mixtures of water, formamide, N-methylformamide, and N,N-dimethylformamide. J Solution Chem 3, 847–855 (1974). https://doi.org/10.1007/BF00645690
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DOI: https://doi.org/10.1007/BF00645690