The possibility of obtaining copper chromite through thermal decomposition
of some polynuclear coordination compounds. [Cr2Cu(NH3)(2)(OH)(6)](NO3)(2)
and [Cr2Cu(OH)(8)]. 4H(2)O obtained through hydrolytic decomposition of chr
omium and copper soluble salts was considered. A decomposition mechanism of
the pattern compounds is proposed. A pure tetragonal Cr2CuO4 with mean cry
stallite sizes varying in the range 133-210 Angstrom was obtained between t
he temperature limits 823 K-1073 K. (C) 2001 Elsevier Science Ltd. All righ
ts reserved.