Kinetic analysis of isothermal, non-isothermal and catalysed thermal decomposition of malonic acid

摘要: A comparative study of the isothermal and non-isothermal decompositions malonic acid has been carried out using gasometric technique at atmospheric pressure. Under conditions, results indicate two different mechanisms. At lower operating temperatures decomposition process is governed by first-order kinetics, while higher it controlled random nucleation Erofeev equation. Analysis TG curves proved advantageous use this technique. It provides quick valid information about thermal kinetics acid, both in pure state when catalysed solid 12-molybdophosphoric its bismuth salts. Via applicability a kinetic equation, was demonstrated that factor causing enhancement effect these catalysts mainly electronic nature.