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 xv
... Cupellation ... ... ... ... Page 301 303 ... 307 ... 307 ... 309 313 315 Determination of the Weight of Silver Globules obtained Compensation Table for the Loss of Silver sustained in Cupellation ... b . Examination of Ores , Minerals ...
... Cupellation ... ... ... ... Page 301 303 ... 307 ... 307 ... 309 313 315 Determination of the Weight of Silver Globules obtained Compensation Table for the Loss of Silver sustained in Cupellation ... b . Examination of Ores , Minerals ...
Página 29
... Cupellation is resorted to for the pur- pose of separating the noble metals as they are called , from those which are readily convertible into oxides . The operation consists in fusing the alloy on charcoal with pure lead , and then ...
... Cupellation is resorted to for the pur- pose of separating the noble metals as they are called , from those which are readily convertible into oxides . The operation consists in fusing the alloy on charcoal with pure lead , and then ...
Página 30
... cupellation . The best method for obtaining it pure , and in a very minute state of division , is to precipitate it from a solution of the acetate , with a plate of zinc . 20. A STEEL MAGNET . - A strongly magnetized steel blade , or a ...
... cupellation . The best method for obtaining it pure , and in a very minute state of division , is to precipitate it from a solution of the acetate , with a plate of zinc . 20. A STEEL MAGNET . - A strongly magnetized steel blade , or a ...
Página 56
... cupellation of gold and silver . HARKORT reduced them to many states of minute division by the processes of sifting and washing . The bones are burnt until they become perfectly white , and then freed from any carbonaceous matter that ...
... cupellation of gold and silver . HARKORT reduced them to many states of minute division by the processes of sifting and washing . The bones are burnt until they become perfectly white , and then freed from any carbonaceous matter that ...
Página 79
... cupellation with lead or silver . Those metals which are volatile , evolve , either partly or entirely , a vapor by such fusion , which condenses in the charcoal . The metallic oxides which are not reduced when melted with carbonate of ...
... cupellation with lead or silver . Those metals which are volatile , evolve , either partly or entirely , a vapor by such fusion , which condenses in the charcoal . The metallic oxides which are not reduced when melted with carbonate of ...
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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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