Abstract
Abstract The thermal decomposition process of the title compound (HHTDD) under the conditions of vacuum and water vapour has been studied by using a highly sensitive Bourdon manometer. This process can be divided into induction period, acceleration period and deceleration period. All the decomposition curves exhibit the typical sigmoid shape. The relationship between the induction period (tin) and the temperature (T) of the thermal decomposition of HHTDD in the temperature range 60 ∼ 120°C can be expressed by the following equations: and Acid and water are the principal factors affecting the stability of HHTDD. Water, especially has a devastating influence on HHTDD. Under linear temperature increase condition, the apparent activation energy of the thermal decomposition reaction of HHTDD is about 160 kJ mol−1. The neutral hydrolytic reaction equation and ion dissociation process of HHTDD are proposed.
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