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ElectroDeposition of Copper
Bronzing electrotypes 87
20 other sections not shown
added allowed to remain alloy ammonium applied attached bath battery battery power become boiling borax brass brassing solution Britannia metal bronze burnisher carbonate of potassa caustic caustic soda chloride cloth cold water colour copper element copper wire cyanide of potassium dilute dipped dissolved double sulphate electricity electro-brassing electro-deposition electro-plating electrode electrotype employed evaporated Florence flask German silver gilding gilt gutta-percha heat hot water hydrochloric acid i2mo immersed instance iron liquid ammonia melted mould necessary nickel and ammonia nickel-plated nitrate nitric acid obtained operation ounces oxide pickle piece plaster platinum plumbago polished porous cell potash poured precipitate pumice purpose quantity readily receive the deposit removed render rinsed in hot sal-ammoniac salt scratch-brushed soda solu solution of cyanide solution of sulphate steel strip strong solution sufficient sulphate of copper sulphate of nickel sulphate of zinc sulphuric acid surface of anode take place tion vessel zinc