Electrosynthesis of titanium supported (CdHg)S has been carried out with the objective of its photoelectrochemical characterization. Inclusion of Hg enhances photoelectroactivity of the composite somewhat. This is consistent with the observed lowering of the band gap of CdS due to the presence of Hg as inferred on the basis of photoaction spectral studies. Current-voltage studies show that (CdHg)S electrodeposits are also endowed with enhanced resistance towards electrochemical corrosion.