A System of Instruction in the Practical Use of the Blowpipe: Being a Graduated Course of Analysis for the Use of Students, and All Those Engaged in the Examination of Metallic Combinations |
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Page v
... Substances , . 168 Tabular Statement of the Reactions of Minerals before the Blowpipe , 178 Carbon and Organic Minerals , • . 181 • Potassa , . 184 Soda ,. Baryta and Strontia , . Lime , Magnesia , . Alumina , • Silicates , . 186 190 ...
... Substances , . 168 Tabular Statement of the Reactions of Minerals before the Blowpipe , 178 Carbon and Organic Minerals , • . 181 • Potassa , . 184 Soda ,. Baryta and Strontia , . Lime , Magnesia , . Alumina , • Silicates , . 186 190 ...
Page 9
... substances , which would not be otherwise detected , but through a troublesome and tedious process , involving both prolixity and time ; for instance , the detection of manganese in minerals . Many substances have to go through Blowpipe ...
... substances , which would not be otherwise detected , but through a troublesome and tedious process , involving both prolixity and time ; for instance , the detection of manganese in minerals . Many substances have to go through Blowpipe ...
Page 10
... substance to such a degree of heat , that it glows or emits light , or becomes red - hot . Its greatest value is in the separation of a volatile substance from one less volatile , or one which is entirely fixed at the temperature of the ...
... substance to such a degree of heat , that it glows or emits light , or becomes red - hot . Its greatest value is in the separation of a volatile substance from one less volatile , or one which is entirely fixed at the temperature of the ...
Page 11
... Substances are exposed to fusion for the purpose of getting a new combination which has such distinctive characteristics that we can class it under a certain group ; or for the purpose of ascertaining at once what the substance may be ...
... Substances are exposed to fusion for the purpose of getting a new combination which has such distinctive characteristics that we can class it under a certain group ; or for the purpose of ascertaining at once what the substance may be ...
Page 12
... substance , and thus we prove the presence or the absence of a certain class of substances . For instance , if we detonate ( as it is termed by the German chemists ) the sulphide of antimony , or the sulphide of arsenic with nitrate of ...
... substance , and thus we prove the presence or the absence of a certain class of substances . For instance , if we detonate ( as it is termed by the German chemists ) the sulphide of antimony , or the sulphide of arsenic with nitrate of ...
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Common terms and phrases
alkali alumina antimony arsenic assay baryta Behavior Mineral bismuth blowpipe blowpipe flame blue color borax cadmium carb carbonate of soda ceding Cerium char charcoal Chemistry Chimie chloride clear bead coal cobalt cold colorless colors the flame compounds cooling copper crystals dark edit exposed external flame flame blue flame of oxidation flame of reduction forceps Fuses fusible glass tube glass-bulb green color grey hydrate hydrochloric acid ignition incrusts the charcoal infusible insoluble intumescence iron lead lime lithia litmus paper London magnesia manganese mass melts metallic oxides microcosmic salt moistened nickel Niobic nitric acid opaque open tube outer flame oxidation flame oxygen Paris platinum platinum wire potash potassa powder present produce protoxide reac red color red heat reduced reduction flame sesquioxide silicates silver soluble Special reactions strontia sublimate substance sulphate sulphide sulphuric acid Telluric Acid tellurium tion Titanic Acid vapor violet violet color volatilized vols yellow color
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Page 16 - The operation depends upon a little artifice in blowing through the pipe, which is in reality more difficult to describe than to acquire. " The effect intended to be produced is a continual stream of air for many minutes, if necessary, without ceasing. This is done by applying the tongue to the roof of the mouth, so as to interrupt the communication between the mouth and the passage of the nostrils ; by which means the operator is at liberty to breathe through the nostrils, at the same time that...
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