The Assayer's Manual: An Abridged Treatise on the Docimastic Examination of Ores, and Furnace and Other Artificial Products |
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Page 40
... sulphuretted hydrogen . C , a glass bulb , receives the diluted sulphuric acid from the funnel tube e ; the acid enters the glass bulb A through the tube b . It rises in this and comes in contact with ferrous sulphide or calcium mono ...
... sulphuretted hydrogen . C , a glass bulb , receives the diluted sulphuric acid from the funnel tube e ; the acid enters the glass bulb A through the tube b . It rises in this and comes in contact with ferrous sulphide or calcium mono ...
Page 41
... sulphuretted hydrogen , sodium hyposulphite may be used as a precipitating agent . d . Filtration . - A funnel , the sides of which have a slope of 60 ° , is generally used for this process ; a filter of paper is folded into it , and ...
... sulphuretted hydrogen , sodium hyposulphite may be used as a precipitating agent . d . Filtration . - A funnel , the sides of which have a slope of 60 ° , is generally used for this process ; a filter of paper is folded into it , and ...
Page 69
... sulphuretted hydrogen , etc. Of porcelain : crucibles , evaporating dishes , tubes , etc. Of other materials : forceps , crucible tongs , ASSAY VESSELS FOR THE WET METHOD . 69 Vessels of other Materials; Assay Vessels for the Wet Method ...
... sulphuretted hydrogen , etc. Of porcelain : crucibles , evaporating dishes , tubes , etc. Of other materials : forceps , crucible tongs , ASSAY VESSELS FOR THE WET METHOD . 69 Vessels of other Materials; Assay Vessels for the Wet Method ...
Page 99
... 208 ; 1873 , p . 91 . * Mascazzini , in Dingler , ccvii . 46 ; B. u . h . Ztg . 1878 , p . 382 . B. u . h . Ztg . 1874 , p . 322 . as sulphide with sulphuretted hydrogen , and converts this into LEAD - WET ASSAYS . 99.
... 208 ; 1873 , p . 91 . * Mascazzini , in Dingler , ccvii . 46 ; B. u . h . Ztg . 1878 , p . 382 . B. u . h . Ztg . 1874 , p . 322 . as sulphide with sulphuretted hydrogen , and converts this into LEAD - WET ASSAYS . 99.
Page 100
... sulphuretted hydrogen , and converts this into sul- phate . Riche determines the lead as superoxide by electrolysis ... sulphuretted hydrogen . ― II . COPPER . 27. ORES . Native copper . Sulphuretted ores : copper glance , CuS , with ...
... sulphuretted hydrogen , and converts this into sul- phate . Riche determines the lead as superoxide by electrolysis ... sulphuretted hydrogen . ― II . COPPER . 27. ORES . Native copper . Sulphuretted ores : copper glance , CuS , with ...
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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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