The reaction of hydrated bismuth nitrate with nitrogen oxides

Abstract

Bismuth nitrate pentahydrate can be dehydrated by treatment with either dinitrogen tetroxide or dinitrogen pentoxide. In each case an adduct with the nitrogen oxide results. Thermal decomposition of these compounds yields two new oxide nitrates, Bi 2O(NO 3) 4 and Bi 4O 5(NO 3) 2. Anhydrous bismuth(III) nitrate is not a stable pyrolysis product; in each case further decomposition to Bi 2O(NO 3) 4 occurs before the nitrogen oxide has been completely removed. The anhydrous nitrate similarly cannot be obtained by thermal decomposition of the addition compounds Bi(NO 3) 3·L (L = acetonitrile or ethyl acetate).