Galvanoplastic Manipulations: A Practical Guide for the Gold and Silver Electroplater and the Galvanoplastic Operator ... Based Largely on the "Manipulations Hydroplastiques" of Alfred Roseleur |
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Page xxi
... SALT ; ACID BATHS . Keeping the Battery in Order Amalgamating Salt Acid Baths B * 429 430 432 433 435 436 437 438 440 441 • 443 444 PAGE • 445 447 CHAPTER LIII . DISPOSITION OF THE.
... SALT ; ACID BATHS . Keeping the Battery in Order Amalgamating Salt Acid Baths B * 429 430 432 433 435 436 437 438 440 441 • 443 444 PAGE • 445 447 CHAPTER LIII . DISPOSITION OF THE.
Page 36
... salt ( chloride of sodium ) • · 100 volumes . • 100 66 1 volume . On removing the articles from the bath they should be thoroughly swilled in an abundance of water . In the preparation of this dipping liquid , the acids should be added ...
... salt ( chloride of sodium ) • · 100 volumes . • 100 66 1 volume . On removing the articles from the bath they should be thoroughly swilled in an abundance of water . In the preparation of this dipping liquid , the acids should be added ...
Page 37
... salt , and Soot , —which is called the " whitening bath . It is prepared about as follows : - Into a large stoneware vessel , a certain quantity of old aqua fortis from previous dippings ( " strong pickle " ) is poured , to which is ...
... salt , and Soot , —which is called the " whitening bath . It is prepared about as follows : - Into a large stoneware vessel , a certain quantity of old aqua fortis from previous dippings ( " strong pickle " ) is poured , to which is ...
Page 38
... salt , and as much of calcined soot , are added . This mixture is much less active than the above described mixed ... salt in sufficient proportions are also added . In this manner a perpetual and cheap whitening bath is prepared . Some ...
... salt , and as much of calcined soot , are added . This mixture is much less active than the above described mixed ... salt in sufficient proportions are also added . In this manner a perpetual and cheap whitening bath is prepared . Some ...
Page 40
... salt . By the addition of the acid , the precipitate disappears , and the solution becomes clear . It is well to stir the mixture before using it . Certain authors recommend the nitrate of the sub - oxide of mercury ( mercurous nitrate ) ...
... salt . By the addition of the acid , the precipitate disappears , and the solution becomes clear . It is well to stir the mixture before using it . Certain authors recommend the nitrate of the sub - oxide of mercury ( mercurous nitrate ) ...
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Common terms and phrases
added adherent alkaline alloys amalgam ammonia ammonium anode aqua fortis aqua regia battery become bisulphite boiling bright bronze brush burnished carbonate cast-iron CHAPTER chloride of gold cleansed coating cold color common salt copper or brass cream of tartar cyanide of potassium dead lustre described diluted dipping dissolved distilled water electric current electro electro-deposits electro-gilding Electro-Metallurgy employed filtered fire-gilding formula galvanic galvanoplastic gilders gilding bath glass gutta percha heat hydrochloric acid iron liquid mercury metal method mixture mould nickel nitrate nitrate of silver nitric acid objects obtained operation ormolu ounces oxide pieces plate platinum porcelain powder precipitate preferable prepared proportion pure pyrophosphate quantity rapidly removed require rinsed Roseleur sal-ammoniac scratch-brushed shade silvering bath simple immersion small articles soda sodium solution steel stirring stoneware sufficient sulphate of copper sulphuric acid surface thickness thin tion varnish vessel washed wire zinc
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