Add time:08/21/2019         Source:sciencedirect.com

The effect of very high intensity UV light on powdered barium and strontium azides in vacuo in the temperature ranges −70° to 100°, and −80° to 90°, has been studied. The photolytic decompositions were characterized by a high percentage decomposition and sigmoid pressure vs time plots similar to those obtained by thermal decomposition. Kinetic analysis, the determination of activation energies, studies of the dependence of reaction rates on light intensity, and the effect of water vapour, were carried out. Mechanisms for decomposition over well defined temperature ranges are proposed.

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