Abstract
The crystal structure of n-undecylammonium bromide monohydrate was determined by X-ray crystallography. The crystal system of the compound is monoclinic, and the space group is P21/c. Molar enthalpies of dissolution of the compound at different concentrations m/(mol·kg−1) were measured with an isoperibol solution–reaction calorimeter at T = 298.15 K. According to the Pitzer’s electrolyte solution model, the molar enthalpy of dissolution of the compound at infinite dilution (\( \Updelta_{\text{sol}} H_{\text{m}}^{\infty } \)) and Pitzer parameters (\( \beta_{\text{MX}}^{(0)L} \) and \( \beta_{\text{MX}}^{(1)L} \)) were obtained. Values of the apparent relative molar enthalpies (\( {}^{\Upphi }L \)) of the title compound and relative partial molar enthalpies (\( \bar{L}_{2} \) and \( \bar{L}_{1} \)) of the solute and the solvent at different concentrations were derived from experimental values of the enthalpies of dissolution.
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This work was financially supported by the National Natural Science Foundations of China under the contracts NSFC No. 20673050 and 20973089.
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Zhang, LJ., Di, YY. & Dou, JM. Thermochemical Properties of n-Undecylammonium Bromide Monohydrate C11H28BrNO(s). J Solution Chem 42, 52–59 (2013). https://doi.org/10.1007/s10953-013-9954-4
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DOI: https://doi.org/10.1007/s10953-013-9954-4