Mercury silvering methods. The technique was also used in Asia, for example "tokin" plating in Edo-period Japan. Mercury silvering Mercury silvering or fire gilding is a silvering technique for applying a thin layer of precious metal such as silver or gold (mercury gilding) to a base metal object. The process was invented during the Middle Ages and is documented in Vannoccio Biringuccio's 1540 book "De la pirotechnia". An amalgam of mercury and the precious metal is prepared and applied to the object which is then heated, sometimes in oil, vaporizing most of the mercury. The technique is dangerous since mercury is highly
Metal triflimidate used as an electrolyte in batteries as a replacement of lithium perchlorate. Metal triflimidate A metal triflimidate M(NTf) in organic chemistry is a metal salt of triflimidic acid and used as a catalyst. Metal Triflimidates are prepared by reaction of metal oxides, carbonates, hydroxides, or halides with triflimidic acid in water as the hydrate MTf·"x"HO with "x" ranging from zero to nine. Another method is by metathesis reaction between a metal Triflimidate and another metal complex by metal exchange. Commercially available salts are based on lithium and silver. The catalytic activity of metal triflimidates has been demonstrated in cycloadditions, in