Non-isothermal kinetics of CoOOH decomposition

The non-isothermal 'kinetics of the decomposition of CoOOH powder has been studied derivatographically in a temperature range of 20–450 °C in air. The reaction proceeds in two stages: up to about 280°C with an activation energy E₁ = 38–50 kcal mol^?1 and above that temperature with E₂ = 20–25 kcal mol^?1, depending on the kinetic equations which are employed. The results have been critically discussed on the basis of certain current concepts.