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 xxvi
... Ammonia . Silver • Nitrate of Silver Nitrate of Mercury ; Nitrate of Potassium Bicarbonate of Potassium . Bicarbonate of Sodium ; Binoxalate of Potassium Bitartrate of Potassium ; Biborate of Sodium . India Rubber 557 558 559 560 562 ...
... Ammonia . Silver • Nitrate of Silver Nitrate of Mercury ; Nitrate of Potassium Bicarbonate of Potassium . Bicarbonate of Sodium ; Binoxalate of Potassium Bitartrate of Potassium ; Biborate of Sodium . India Rubber 557 558 559 560 562 ...
Page 46
... ammonia or of carbonate of sodium ( sal - soda ) , which neutralizes the acid and prevents any injurious action . upon the silver . It is then sufficient simply to place the rinsed article between layers of well - dried and warm saw ...
... ammonia or of carbonate of sodium ( sal - soda ) , which neutralizes the acid and prevents any injurious action . upon the silver . It is then sufficient simply to place the rinsed article between layers of well - dried and warm saw ...
Page 119
... ammonia Water 50 parts . 50 66 100 66 47 66 · 35 66 2500 66 Bisulphite of soda Cyanide of potassium Carbonate of soda Acetate of copper Aqua ammonia Water WARM BATH . 20 parts . 70 66 50 66 50 66 . · 30 66 2500 Third Formula . HOT OR ...
... ammonia Water 50 parts . 50 66 100 66 47 66 · 35 66 2500 66 Bisulphite of soda Cyanide of potassium Carbonate of soda Acetate of copper Aqua ammonia Water WARM BATH . 20 parts . 70 66 50 66 50 66 . · 30 66 2500 Third Formula . HOT OR ...
Page 120
... ammonia Water 30 parts . 50 66 35 66 20 66 2500 66 Lastly , for small articles of zinc , which may be cop- pered in a perforated ladle , and at nearly boiling tem perature : - Fourth Formula . Cyanide of potassium Bisulphite of soda ...
... ammonia Water 30 parts . 50 66 35 66 20 66 2500 66 Lastly , for small articles of zinc , which may be cop- pered in a perforated ladle , and at nearly boiling tem perature : - Fourth Formula . Cyanide of potassium Bisulphite of soda ...
Page 125
... ammonia , formed by double decomposition , are without any bad effects during the operation . Carbonate of copper , recently precipitated and dissolved in just enough cyanide of potassium to discolor it , may also be employed . This ...
... ammonia , formed by double decomposition , are without any bad effects during the operation . Carbonate of copper , recently precipitated and dissolved in just enough cyanide of potassium to discolor it , may also be employed . This ...
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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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