Electro-metallurgy Practically Treated

acetate added allowed to remain alloy anode exposed applied attached battery battery power become blowpipe borax brassing solution bronze burnisher carbonate of potassa caustic caustic soda chloric acid coated cold water colour copper element copper wire crucible cyanide of potassium dilute dipped dissolved distilled water dried edge electro electro-brassing electro-deposition electro-plater electrotype employed Florence flask fumes fused German silver gilding gilding bath gilt gold solution gutta percha heat hot water hydrochloric acid immersed instance iron liquid ammonia medal melted metal mould necessary nitrate of silver nitric acid operator organic matter ounces oxide pewter solder pickle plaster platinum plumbago porous cell potash pound poured precipitate purpose quantity receive the deposit removed rinsed in hot rubbed Sal ammoniac sand scratch-brushed soda solu solution of cyanide soon steel strip sufficient sulphate of copper sulphate of zinc sulphuric acid surface of anode tion vessel washed zinc plate