Copper(I) azideCopper azide is an inorganic chemical compound with the formula. It is composed of a copper cation and an azide anion.PropertiesCopper azide has been used in the preparation of high-energy materials using methods with low environmental cost. These preparations were completed using systems that were high in nitrogen and without any oxygen. Like most azides, it is explosive.CuAACCopper azide is supported during the process of copper-catalyzed azide-alkyne cycloaddition.