<Dd> Bi (aq) + Cl (aq) + H O (l) <=> BiOCl (s) + 2 H (aq) </Dd> <P> This reaction can be reversed by adding an acid, such as hydrochloric acid . </P> <P> Reaction of solid BiCl with water vapour below 50 ° C has been shown to produce the intermediate monohydrate, BiCl. H O . </P> <P> Bismuth chloride is an oxidizing agent, being readily reduced to metallic bismuth by reducing agents . </P>

Addition of bismuth chloride to excess of water produces