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Enthalpies of solution of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane in aqueous solution as a function of concentration and temperature

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Abstract

Solution enthalpies of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane, TATD, in water were measured as a function of molal concentration at 278.15, 288.15, 298.15, and 308.15 K. Solvation enthalpies and the heat capacity of solution were calculated. The results show a structuring of solvent around the solute and the observed temperature dependency of the enthalpy of solvation permits the classification of TATD as being a “mixed solute”. The Scaled Particle Theory was employed for analyzing the individual contributions to the solvation enthalpy.

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Authors and Affiliations

  1. Laboratorio de Investigaciones Básicas, Departamento de Química, Universidad Nacional de Colombia, Ciudad Universitaria, Bogotá D.C., Colombia

    Yina P. Salamanca & Luis H. Blanco

  2. Laboratorio de Termodinámica de Soluciones, Departamento de Química, Universidad de Los Andes, Cr. 1 No. 18 A-10, Bogotá D.C., Colombia

    Yina P. Salamanca & Edgar F. Vargas

Authors
  1. Yina P. Salamanca
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  2. Luis H. Blanco
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  3. Edgar F. Vargas
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Correspondence to Edgar F. Vargas.

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Salamanca, Y.P., Blanco, L.H. & Vargas, E.F. Enthalpies of solution of 1,3,6,8-tetraazatricyclo[4.4.1.13,8]dodecane in aqueous solution as a function of concentration and temperature. J Therm Anal Calorim 114, 451–455 (2013). https://doi.org/10.1007/s10973-012-2870-9

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  • DOI: https://doi.org/10.1007/s10973-012-2870-9

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