Thermochemistry on dodecylamine hydrochloride and <Emphasis Type="Italic">bis</Emphasis>-dodecylammonium tetrachlorozincate |
| |
Authors: | Y P Liu Y Y Di W Y Dan D H He Y X Kong W W Yang |
| |
Institution: | (1) College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059, Shandong Province, People’s Republic of China; |
| |
Abstract: | Dodecylamine hydrochloride C12H25NH3·Cl(s) and bis-dodecylammonium tetrachlorozincate (C12H25NH3)2ZnCl4(s) were synthesized by the method of liquid phase reaction. The constant-volume energy of combustion of dodecylamine hydrochloride
was measured by means of a RBC-II precision rotating-bomb combustion calorimeter at T = (298.15 ± 0.001) K. The standard molar enthalpy of formation of C12H25NH3·Cl(s) was calculated to be
\Updeltaf Hmo \Updelta_{\rm{f}} H_{\rm{m}}^{\rm{o}} (C12H25NH3·Cl, s) = −(706.79 ± 3.97) kJ mol−1 from the constant-volume energy of combustion. In accordance with Hess’ law, a reasonable thermochemical cycle was designed
and the enthalpy change of the synthesis reaction of the complex (C12H25NH3)2ZnCl4(s) was determined by use of an isoperibol solution-reaction calorimeter. The standard molar enthalpy of formation of (C12H25NH3)2ZnCl4(s) was calculated as
\Updeltaf Hmo \Updelta_{\rm{f}} H_{\rm{m}}^{\rm{o}} (C12H25NH3)2ZnCl4, s] = −(1862.14 ± 7.95) kJ mol−1 from the standard molar enthalpy of formation of C12H25NH3·Cl(s) and other auxiliary thermodynamic data. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|