“…For example, dental amalgam electrodes are similar to silver electrodes but with a higher hydrogen overvoltage. − In another study, Pd, Au, Pt, and Cu amalgams behaved similarly than the pure Hg . Amalgam or mercury-plated electrodes have been used also in preparative organic electroreductive synthesis. ,,,,− For example, amalgamated copper, lead, and zinc were used to reduce vanillin to vanillyl alcohol, amalgamated lead and copper in the adiponitrile synthesis, amalgamated copper in the reduction of salicylic acid to salicylaldehyde, mercury-plated copper in the synthesis of l -cysteine hydrochloride, , and amalgamated lead in the reduction of oxalic to glyoxylic acid (Scheme ). …”