A study of the reactivity of copper nanopowders in their reaction with glacial acetic acid

Abstract

The reactivity of copper nanopowders obtained by mechanical treatment or electric explosion of a conductor was studied in their reaction with glacial acetic acid. Two parameters were used to evaluate the reactivity: heat effect of the reaction and the maximum rate of heat release.Compared with compact substances, highly dispersed materials have an excess energy, and, therefore, they are frequently named energy-saturated systems or media [1,2]. With the high energy content of dispersed particles, which is due, in particular, to the contribution of the surface energy, is associated a very important specific feature of ultradispersed media, i.e., their high reactivity.