Regularities of Enthalpies of Combustion of Nitrogen-Containing Organic Compounds

: In the following work, the enthalpies of combustion of 16 nitrogen-containing organic compounds - amides and anilides were experimentally determined using the method of bomb calorimetry. The regularities of the course of the change in the enthalpies of combustion of these compounds have been found. Thus, the analysis of the obtained data revealed the presence of two correlation dependences for these substances. The established correlations indicate the dependence of the numerical values of enthalpies of combustion on stoichiometric amount of oxygen in chemical reaction equations for the complete combustion of amides and anilides. To evaluate the efficiency of new correlations, they were tested on experimental data obtained by the other authors on the example of combustion of other 9 amides and 7 anilides. For these compounds, the experimental values of enthalpies of combustion and the calculated values do not diverge by more than 10%. This indicates the efficiency of the proposed ratios for predicting enthalpies of combustion of not yet studied amides and anilides.

Alma Kairlapovna Ryskaliyeva, Murat Ergalievich Baltabayev and Kurmankul Tuleutaevna Abaeva