The Use of the Blowpipe in the Qualitative and Quantitative Examination of Minerals, Ores, Furnace Products, and Other Metallic Combinations |
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Page 5
... whole was imagined and executed with such sagacity and precision , that his results were entitled to the greatest confidence . He most readily and carefully instructed those who were desirous of infor- mation on the subject ; but he ...
... whole was imagined and executed with such sagacity and precision , that his results were entitled to the greatest confidence . He most readily and carefully instructed those who were desirous of infor- mation on the subject ; but he ...
Page 12
... whole , the heat being most intense at f . Where the heat is greatest , substances which are not acted upon by an ordinary flame , oxidate , melt , and evaporate . The further the matter can be kept from the apex of the blue flame , in ...
... whole , the heat being most intense at f . Where the heat is greatest , substances which are not acted upon by an ordinary flame , oxidate , melt , and evaporate . The further the matter can be kept from the apex of the blue flame , in ...
Page 58
... whole is then fused perfectly in the reducing flame . When the tin has been added to the bead , which contains the substance for examination , an operator must not direct the flame upon the glass for too long a time , partly because the ...
... whole is then fused perfectly in the reducing flame . When the tin has been added to the bead , which contains the substance for examination , an operator must not direct the flame upon the glass for too long a time , partly because the ...
Page 73
... whole of the charcoal upon which the assay rested , is cut out with a knife , and put into an agate mortar , care being taken to lose nothing in the transfer . The mass is mixed with water , and ground to a fine powder . If there be any ...
... whole of the charcoal upon which the assay rested , is cut out with a knife , and put into an agate mortar , care being taken to lose nothing in the transfer . The mass is mixed with water , and ground to a fine powder . If there be any ...
Page 78
... be separated from the molten mass , by allowing it to flow gently from side to side upon the charcoal , while covered by the reducing flame . The whole is then removed with a spatula , and 78 SMELTING WITH BORAX AND SODA .
... be separated from the molten mass , by allowing it to flow gently from side to side upon the charcoal , while covered by the reducing flame . The whole is then removed with a spatula , and 78 SMELTING WITH BORAX AND SODA .
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Other editions - View all
The Use of the Blowpipe in the Qualitative and Quantitative Examination of ... Carl Plattner No preview available - 2017 |
The Use of the Blowpipe in the Qualitative and Quantitative Examination of ... Carl Friedrich Plattner No preview available - 2016 |
Common terms and phrases
100 milligrammes Al² 0³ alkali alloy alumina ammonia antimony arsenic arsenic acid assay baryta bead becomes bismuth bisulphate of potassa Blowpipe blue boracic acid borax carbonate of soda cerium cetera charcoal clear glass cobalt color colorless combination compound cooling copper cupellation decigramme detected dissolved employed evaporated examination exempli gratia filtered fluxes forceps formed fused fusible fusion gold green heated hydrochloric acid inch ingredients insoluble lime magnesia manganese mass melted metallic oxides microcosmic salt Mineral Kingdom mixed nickel nitrate nitric acid obtained opaque operator oxidating flame oxide of iron oxide of lead particles perfectly phosphate platinum foil platinum wire portion powder precipitate present protoxide of iron pulverized pure readily reagent reducing flame residue roasted separated sesquioxide sesquioxide of iron silicic acid silver small quantity smelting soluble solution strontia sublimate sulphate sulphuric acid Tellurium tinge titanic acid treated volatile workable lead yellow yttria zinc
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