Electro-metallurgy Practically Treated |
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added alkaline alloy ammonium applied attached bath Bath brick battery battery power become boiling Britannia metal bronze burnisher caustic chloride clean cloth coating cold water colour copper element copper wire cyanide of potassium deposited metal dilute dipped dissolved distilled water double salts double sulphate dynamo-electric machine edition electricity electro-brassing electro-deposition electro-plating electrode electrotype employed Florence flask German silver gilding gilt gutta-percha heat hot water hydrochloric acid immersed inch iron liquid ammonia medal melted mould necessary nickel and ammonia nickel solution nickel-plated nitrate nitric acid obtained operation ounces oxide pickle piece plaster plate platinum plumbago polished porous cell potash poured practical precipitate pumice purpose quantity readily receive the deposit removed render sal-ammoniac scratch-brushed soda solder solu solution of cyanide solution of sulphate steel stout strip strong solution sufficient sulphate of copper sulphate of nickel sulphuric acid surface of anode take place tion vessel washed zinc