THERMAL-ANALYSIS AND KINETIC-STUDY OF DECOMPOSITION PROCESSES OF SOMECOMMERCIAL PESTICIDES - I - TRIAZINE DERIVATIVES

The thermal behaviour of some commercial pesticides was studied by mea ns of simultaneous TG-DSC measurements. Kinetic parameters relating to liquid-gas-phase transition processes were determined via a dynamic T G technique. Gas chromatography-mass spectrometry were used to make me asurements on the gaseous products. The liquid-gas-phase transition pr ocesses of these compounds seem to be influenced by the substituent gr oups rather than by the side-chains. A chlorine substituent destabiliz es some compounds, bringing closer together the temperatures of meltin g and liquid-gas-phase transition processes.