The Assayer's Manual: An Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products |
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Page ix
... COPPER . Ores ; Native Copper Dry Assays 100 101 German Copper Assay ; Ores with Sulphur , Antimony , or Ar- senic ; Roasting ; Pyrites ; Reducing and Solvent Fusion Examples of Charges ; American Charge Refining ; Lead ; Refining on ...
... COPPER . Ores ; Native Copper Dry Assays 100 101 German Copper Assay ; Ores with Sulphur , Antimony , or Ar- senic ; Roasting ; Pyrites ; Reducing and Solvent Fusion Examples of Charges ; American Charge Refining ; Lead ; Refining on ...
Page x
... Copper III . SILVER . PAGE • 128 · 130 Principal Ores ; Assays for Non - alloys 131 Fire Assays ; Collecting the Silver with Lead ; Scorification Assay ; The Quantity of Lead to be Used 132 · • The Quantity of Borax ; The Number of ...
... Copper III . SILVER . PAGE • 128 · 130 Principal Ores ; Assays for Non - alloys 131 Fire Assays ; Collecting the Silver with Lead ; Scorification Assay ; The Quantity of Lead to be Used 132 · • The Quantity of Borax ; The Number of ...
Page xi
... Copper Preliminary Test for Alloys free from Copper - the Color of the Alloy - Examination on the Touchstone ; Preliminary Assay of Cupriferous Alloys by Cupellation - with Lead Alone The Quantity of Lead required With an addition of ...
... Copper Preliminary Test for Alloys free from Copper - the Color of the Alloy - Examination on the Touchstone ; Preliminary Assay of Cupriferous Alloys by Cupellation - with Lead Alone The Quantity of Lead required With an addition of ...
Page xii
... Copper is Small • . The Wet Method partially used when the Percentage of Copper is Large ; The Processes ; Nickeliferous Pyrrhotine Compounds Difficultly Soluble , as , for instance , Slags ; Com- pounds containing Antimony Wet Assay ...
... Copper is Small • . The Wet Method partially used when the Percentage of Copper is Large ; The Processes ; Nickeliferous Pyrrhotine Compounds Difficultly Soluble , as , for instance , Slags ; Com- pounds containing Antimony Wet Assay ...
Page xiii
... Copper is present ; Volumetric Assays ; Schaff- ner's Assay with Sodium Sulphide Indicators for Recognizing the Final Reaction Points to be Observed - The Quantity of the Hydrated Ferric Oxide ; Shade of Coloration of the Hydrated ...
... Copper is present ; Volumetric Assays ; Schaff- ner's Assay with Sodium Sulphide Indicators for Recognizing the Final Reaction Points to be Observed - The Quantity of the Hydrated Ferric Oxide ; Shade of Coloration of the Hydrated ...
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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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