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Silver - LoveToKnow 1911 (Site not responding. Last check: 2007-10-29) |
 | | Sodium chloride, characteristic of the Augustin process in which the ores, after a chloridizing roast, were extracted with brine, and the silver precipitated by copper, has almost wholly fallen into disuse; and potassium cyanide, which has become a very important solvent for finely divided gold, is rarely used in leaching silver ores. |
 | | This may be effected by mixing the dry chloridewith one-fifth of its weight of pure quicklime or one-third of its weight of dry sodium carbonate, and fusing the mixture in a, fire-clay crucible at a bright red heat. |
 | | Silver chloride, AgC1, constitutes the mineral cerargyrite or horn silver; mixed with clay it is the butter-milk ore of the German miners. |
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