The interphase synthesis of silver dispersions in decane without using of surfactants were described. Dispersity and phase composition of the disperse phase of the colloidal dispersions were analysed by the methods of the chemical analysis, electron microscopy, X-ray and UV-vis spectroscopy. It was shown that the disperse phase of the colloidal dispersion consists of crystal spherical particles of silver of average diameter ca.26 nm (sigma = 0.67). (C) 1999 Elsevier Science B.V. All rights reserved.