The Use of the Blowpipe in the Qualitative and Quantitative Examination of Minerals, Ores, Furnace Products, and Other Metallic CombinationsJ. Churchill, 1854 - 405 páginas |
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Página 7
... becomes so hot that it cannot be held between the fingers , unless enclosed in a noncon- ducting substance . Fig . 2 . When the Blowpipe was required for glass , BER- ZELIUS employed a tube bent to a right angle ; -see Fig . 2. This ...
... becomes so hot that it cannot be held between the fingers , unless enclosed in a noncon- ducting substance . Fig . 2 . When the Blowpipe was required for glass , BER- ZELIUS employed a tube bent to a right angle ; -see Fig . 2. This ...
Página 10
... becomes easy . The fear of blowing being injurious to health is soon removed . Fig . 5 . To obtain an intense heat by blowing on the lighted combustible , requires a previous knowledge of its va- rious parts ; for on examining the flame ...
... becomes easy . The fear of blowing being injurious to health is soon removed . Fig . 5 . To obtain an intense heat by blowing on the lighted combustible , requires a previous knowledge of its va- rious parts ; for on examining the flame ...
Página 11
... becomes of a white heat , at the outer part a , e , b , whilst at c it barely assumes a red one . The cause of this phenomenon is as follows : -The small in- terstices of the wick , like other porous bodies , imbibe the melted tallow or ...
... becomes of a white heat , at the outer part a , e , b , whilst at c it barely assumes a red one . The cause of this phenomenon is as follows : -The small in- terstices of the wick , like other porous bodies , imbibe the melted tallow or ...
Página 12
... becomes concentrated in a less space . If such a flame be directed upon a metallic oxide , so that the point covers it totally , the oxygen will be eliminated , either partially or entirely , according to the stability of the compound ...
... becomes concentrated in a less space . If such a flame be directed upon a metallic oxide , so that the point covers it totally , the oxygen will be eliminated , either partially or entirely , according to the stability of the compound ...
Página 24
... becomes blunt from continued usage , it may be easily repaired by applying it with force to the grinding - stone . 7. AN ANVIL . - A polished anvil , of hard- ened steel - Fig . 22 - will be found exceed- ingly useful in the laboratory ...
... becomes blunt from continued usage , it may be easily repaired by applying it with force to the grinding - stone . 7. AN ANVIL . - A polished anvil , of hard- ened steel - Fig . 22 - will be found exceed- ingly useful in the laboratory ...
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Outras edições - Ver tudo
The Use of the Blowpipe in the Qualitative and Quantitative Examination of ... Carl Friedrich Plattner Visualização integral - 1854 |
The Use of the Blowpipe in the Qualitative and Quantitative Examination of ... Carl Plattner Pré-visualização indisponível - 2017 |
The Use of the Blowpipe in the Qualitative and Quantitative Examination of ... Carl Friedrich Plattner Pré-visualização indisponível - 2016 |
Palavras e frases frequentes
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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