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 17
... oxides , and not elementary substances , as had previously been the universal belief . It was not , however , until many years after this that the decomposing power of the battery was applied to useful purposes in the arts . It was ...
... oxides , and not elementary substances , as had previously been the universal belief . It was not , however , until many years after this that the decomposing power of the battery was applied to useful purposes in the arts . It was ...
Page 28
... oxide of copper ( cupric oxide ) , caused by the heating operation above described , is entirely dissolved . The remaining coat of red oxide of copper ( cuprous oxide ) is unacted upon by the sul- phuric acid . It should be remarked ...
... oxide of copper ( cupric oxide ) , caused by the heating operation above described , is entirely dissolved . The remaining coat of red oxide of copper ( cuprous oxide ) is unacted upon by the sul- phuric acid . It should be remarked ...
Page 32
... oxide of copper has entirely disappeared , leaving , after rinsing , a uniform metallic lustre . The dipping in old aqua fortis is not absolutely neces- sary , although we recommend it for two reasons , the last being the more important ...
... oxide of copper has entirely disappeared , leaving , after rinsing , a uniform metallic lustre . The dipping in old aqua fortis is not absolutely neces- sary , although we recommend it for two reasons , the last being the more important ...
Page 40
... oxide of mercury ( mercurous nitrate ) ; but experience has shown that it is inferior to the nitrate . * The ... oxides , analogously constituted ( HgO and CuO ) . It may be laid down as a rule that the 40 GALVANOPLASTIC MANIPULATIONS .
... oxide of mercury ( mercurous nitrate ) ; but experience has shown that it is inferior to the nitrate . * The ... oxides , analogously constituted ( HgO and CuO ) . It may be laid down as a rule that the 40 GALVANOPLASTIC MANIPULATIONS .
Page 45
... oxide of copper as fast as it is formed ; as for the chalk and charcoal dust , we do not understand their utility , unless they are intended to prevent the formation of a small quantity of oxide of silver , which would also have been ...
... oxide of copper as fast as it is formed ; as for the chalk and charcoal dust , we do not understand their utility , unless they are intended to prevent the formation of a small quantity of oxide of silver , which would also have been ...
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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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