Standard enthalpy of formation of 2-chloro-6-(trichloromethyl)pyridine

Article abstract of DOI:10.1016/0021-9614(89)90175-4

The standard enthalpy of formation of 2-chloro-6-(trichloromethyl)pyridine(cr) was determined to be -(55.4 +/- 1.8) kJ * mol^-1 at 298.15 K by rotating-bomb oxygen combustion calorimetry using paraffin oil as a combustion aid and As2O3(aq) as a reducing agent for Cl2 formed.Nitric acid and chlorometallic acids of noble metals present in the final bomb solution were analysed by ion-chromatographic and atomic-absorption spectrometric methods, respectively.The effect of catalytic pre-oxidation of As2O3(aq) was evaluated.The standard molar energy of combustion was calculated using a computation form derived by combining that for CHON compounds with that for CHOCl compounds.The modifications of the form are described.