The densities of Co(Ⅲ)amminates are calculated by additive method using molar volume increments of structural fragments with average error of±1.2g/cm³.Their detonation velocity are estimated by dividing the coordination complexes into an“active”(anion-oxidizer and ligands)and an“inert”(metal center cation and water)parts and then by calculation method using increments of chemical bonds and structural fragments with average error of ± 140m/s.