Chemical Analysis of Aluminum as a Propellant Ingredient and Determination of Aluminum and Aluminum Nitride in Condensed Combusition Products

摘要

A brief survey of typical problems in the analysis of aluminum powder in aluminized solid propellants and in analysis of condensed combustion products of these propellants was carried out. Recommendations for applying the versions developd by the authors of the known methods are given. The permanganatometric variant of the titrimetric method was found suitable for most tasks concerning thee measuring of the metallic/unburned aluminum. The determination of aluminum nitride in combustion products using the combination of chemical and X-ray diffraction methods was described and illustrated by results obtained from condensed combustion products of propellant formulations containing highly active ultrafine aluminum powder.Even for this formulation he content of aluminum nitride in the final condensed combusiton products was found to be negligibly small independently of the nature of the gas(argon or nitrogen)used for bomb pressurization.