The decomposition of pure acetylacetone occurs uniformly in the temperature range of 374-540C in accordance with a time law of the first order. The question arose of the disintegration velocity of the chelates. Copper acetylacetonate was the pattern substance, purified by repeated fractionated crystallization from methanol. The decompositions are similar to acetylacetone disintegration with acetone, carbon monoxide, carbon dioxide and methane as its main products. Gas chromatography discerned small quantities ...
The thermal disintegration of acetylacetone is submitted to a thorough investigation utilizing both statically and dynamically operating measuring apparatus. Under static test, disintegration satisfactorily occurred in the range of 375 to 450C, with an initial pressure of 300 tons. Free radicals are determined utilizing the Paneth metal mirror technique. An induction period could not be determined. In all, propylene acts in a markedly inhibitive manner, and the gross reaction obeys ...
The thermal disintegration of ethyl-, n-propyl- and i-propyl azides in the gas phase was kinetically analysed by means of a static and dynamic measuring arrangement. In case of all azides above 25 torr it does not depend upon pressure, occurs almost homogeneously and follows the order of the first law of time. The dependence of reaction velocity constants upon temperature can be expressed in the form of equations. Qualitative and ...