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Enthalpies of Dilution of Cobalt–Amine-Type Salts in Aqueous Solutions at 25°C

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Abstract

The enthalpies of dilution for aqueous solutions of [Co(en)3]Br3, [Co(pn)3]Cl3, and [Co(tn)3]Cl3 (where en = 1,2-diaminoethane, pn = 1,2-diaminopropane, and tn = 1,3-diaminopropane) have been measured at 25°C, and up to m = 1 mol-kg−1, using an isoperibol calorimeter by the “long-jump” method. Relative apparent molar enthalpies L φ have been extracted as an empirical equation relating L φ and m. Previously reported experimental data and theoretical predictions in the restricted primitive model (RPM) for 3:1 and 1:3 aqueous electrolytes are shown together with the new experimental material.

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Arsuaga, J.M., Taravillo, M. & Cáceres, M. Enthalpies of Dilution of Cobalt–Amine-Type Salts in Aqueous Solutions at 25°C. Journal of Solution Chemistry 30, 1091–1100 (2001). https://doi.org/10.1023/A:1014450018116

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  • DOI: https://doi.org/10.1023/A:1014450018116

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