METHOD OF PREPARING (5-NITROTERAZOLATO)PENTAAMMINO COBALT(III) PERCHLORATE Russian patent published in 2005 - IPC

FIELD: inorganic synthesis and explosives.

SUBSTANCE: invention relates to methods for preparing explosives, in particular to a method of preparing (5-nitroterazolato)pentaammino cobalt(III) perchlorate, which can be used in production of initiators of elevated safety in handling. Synthesis is accomplished via interaction of aquapentaammino cobalt(III) perchlorate with 50nitroterazole sodium salt tetrahydrate in 1.0-4,0% chloric acid aqueous solution at 89-96°C and molar ration of reactants between 1:1.2 and 1:1.5, respectively, followed by double recrystallization of product from o.1-0.3% chloric acid solution under simplified conditions. In order to reduce sensitivity of product to mechanic effects and to enable transportation thereof to long distances, product is moistened to 30-40% moisture with water/ethanol mixture. Yield of (5-nitroterazolato)pentaammino cobalt(III) perchlorate is increased by 12%.

EFFECT: increased preparation safety due to less sensitive starting material and reduced sensitivity of product to friction.

3 cl, 2 tbl, 10 ex