Colloidal solution of the copper oxide in organic phase was synthesize
d by the chemical deposition in two-phase system (octan-water). Disper
sity and phase composition of the disperse phase of colloidal solution
were analysed by the methods of chemical analysis, electron microscop
y, X-ray and IR-spectroscopy. Copper oxide is found to form as a collo
idal solution in the organic layer, disperse phase of which consists o
f the crystal spherical particles of copper oxide (II) of average diam
eter amounting to 6 nm (sigma = 0,165).