The Assayer's Manual: An Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products |
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Page x
... Determined by the French Commission on Coinage and Medals ; Results obtained at Freiburg ; Wet Assays · 147 ... Determining the Approxi- mate Percentage of Gold in Earthy and Gravelly Minerals , Poor in Gold ; Practice in Montana and ...
... Determined by the French Commission on Coinage and Medals ; Results obtained at Freiburg ; Wet Assays · 147 ... Determining the Approxi- mate Percentage of Gold in Earthy and Gravelly Minerals , Poor in Gold ; Practice in Montana and ...
Page xi
... Determining the Gold ; Separation of Aurif- erous Silver Grains from Samples of Ores ; Alloys of Gold with Copper 178 V. PLATINUM . Ores ; Assay of Platiniferous Ores ; Fire Assays , Percentage of Sand , Percentage of Gold , Percentage ...
... Determining the Gold ; Separation of Aurif- erous Silver Grains from Samples of Ores ; Alloys of Gold with Copper 178 V. PLATINUM . Ores ; Assay of Platiniferous Ores ; Fire Assays , Percentage of Sand , Percentage of Gold , Percentage ...
Page xii
... Determining Copper in Nickel Coins Volumetric Assay with Sodium Sulphide Separation of Cobalt , Colorimetric Assay · 196 197 198 Ores VII . COBALT . Assays of Cobalt ; Object of the Assays ; Determination of Cobalt by the Dry or Wet ...
... Determining Copper in Nickel Coins Volumetric Assay with Sodium Sulphide Separation of Cobalt , Colorimetric Assay · 196 197 198 Ores VII . COBALT . Assays of Cobalt ; Object of the Assays ; Determination of Cobalt by the Dry or Wet ...
Page xiii
... Determination of Zinc as Zinc Sulphide Determination of Zine as Zinc Oxide ; Galvanic Assay • Treatment when Copper is present ; Volumetric Assays ; Schaff- ner's Assay with Sodium Sulphide Indicators for Recognizing the Final Reaction ...
... Determination of Zinc as Zinc Sulphide Determination of Zine as Zinc Oxide ; Galvanic Assay • Treatment when Copper is present ; Volumetric Assays ; Schaff- ner's Assay with Sodium Sulphide Indicators for Recognizing the Final Reaction ...
Page xiv
... Determined in Combination with Gold ; Eschka's Process · Kustel's Assay ; Assay of Cinnabar ; Wet Assays ; Gravimetric Assay Volumetric Assays XIII . ANTIMONY . Ores ; Fire Assays Liquation Process for Determining Antimonium Crudum ...
... Determined in Combination with Gold ; Eschka's Process · Kustel's Assay ; Assay of Cinnabar ; Wet Assays ; Gravimetric Assay Volumetric Assays XIII . ANTIMONY . Ores ; Fire Assays Liquation Process for Determining Antimonium Crudum ...
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Common terms and phrases
2.5 grammes 20 grammes added alloy ammonia ammonium antimony aqua regia argol arsenic assay sample beaker-glass bismuth black copper black flux boiled borax burette cent charcoal charge chloride coal cobalt color common salt containing copper covering of common crucible crucible Fig cubic centimeters cubic inches cupelled decanted decomposed determined diluted Dingler dried evaporated to dryness ferric oxide ferrous filtered filtrate flask fluid foreign metals Fresenius furnace fused fusion glass gold gramme 15.43 grains gramme 7.71 grains grammes 154.32 grains grammes 77.16 grains granulated lead heated hydrate hydrochloric acid ignited iron lead button liquid litharge mercury metallic sulphides meters method millimeters mixed mixture muffle muffle-furnace nickel nitric acid percentage placed platinum porcelain potassium carbonate potassium cyanide poured powdered precipitated pyrites refractory residue scorifier slag smelting sodium carbonate sodium sulphide substances sulphate sulphuretted hydrogen sulphuric acid temperature titrated tube u. h. Ztg volumetric washed weighed zinc Ztschr
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