. Journal. pongy sheet,a corresponding amount of copper being dissolved. Onceor twice the sheet is loosened and turned in order to exposewhat copper may cling to it to the first action of the silverliquid entering. When the sweetening of the crystals hasbeen finished and the crystals have been removed from 11for further treatment, the silver separated in 10 is thrownon the false bottom of 11, a shovel of crystals is added, and11 is filled with hot water and left at rest. By the timethat 11 is again required to receive another batch of crystalsfrom 6 all copper which the silver sponge may have


. Journal. pongy sheet,a corresponding amount of copper being dissolved. Onceor twice the sheet is loosened and turned in order to exposewhat copper may cling to it to the first action of the silverliquid entering. When the sweetening of the crystals hasbeen finished and the crystals have been removed from 11for further treatment, the silver separated in 10 is thrownon the false bottom of 11, a shovel of crystals is added, and11 is filled with hot water and left at rest. By the timethat 11 is again required to receive another batch of crystalsfrom 6 all copper which the silver sponge may have still Juno so, 1892.] THE JOUKNAL OF THE SOCIETY OF CHEMICAL INDUSTRY. 531 retained has been dissolved, the liquid is run on 10, and the ! rendered metallic does not exceed 3 per cent, of the whole,silver is left in 11 to be mixed with the new charge of as the crystals of silver sulphate are only slightly dissolvedcrystals. In practice the total amount of silver thus by cold water. Gctzkows Parting Arrangement of Plant.


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882