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Excess molar enthalpies for ternary mixtures of (methanol or ethanol + water + tributyl phosphate) at T = 298.15 K

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Abstract

Excess molar enthalpies for two ternary mixtures of {x 1 tributylphosphate (TBP) + x 2 water + x 3 methanol/ethanol} were measured at T = 298.15 K and atmospheric pressure using a TAM Air isothermal calorimeter, by mixing methanol or ethanol with binary mixtures of (water + TBP). Excess enthalpies for initial binary mixtures of (water + TBP) were also measured under the same conditions, which showed phase separation at low molar fraction of TBP. Experimental results of the ternary mixtures were expressed with constant excess molar enthalpy contours on Roozeboon diagrams.

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Acknowledgements

Project supported by the National Natural Science Foundation of China (20873182).

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  1. College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, Hunan, China

    Hong-Li Liu, Shi-Jun Liu & Qi-Yuan Chen

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  1. Hong-Li Liu
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  2. Shi-Jun Liu
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Correspondence to Shi-Jun Liu.

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Liu, HL., Liu, SJ. & Chen, QY. Excess molar enthalpies for ternary mixtures of (methanol or ethanol + water + tributyl phosphate) at T = 298.15 K. J Therm Anal Calorim 107, 837–841 (2012). https://doi.org/10.1007/s10973-011-1456-2

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  • DOI: https://doi.org/10.1007/s10973-011-1456-2

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