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 iv
... Borax Bead , ( ( in Microcosmic Salt , Table I. - Colors of Beads of Borax and Microcosmic Salt , Table II . - Behavior of Metallic Oxydes with Borax and Microcosmic Salt , • Examinations with Carbonate of Soda , 85 103 PART III ...
... Borax Bead , ( ( in Microcosmic Salt , Table I. - Colors of Beads of Borax and Microcosmic Salt , Table II . - Behavior of Metallic Oxydes with Borax and Microcosmic Salt , • Examinations with Carbonate of Soda , 85 103 PART III ...
Page 11
... borax ( NaO , 2Br03 ) and the microcosmic salt ( NaO , NH'O , PO , HO ) . Charcoal and the platinum wire are used as supports for this kind of operation . ( d . ) Oxidation . The chemical combination of any substance with oxygen is ...
... borax ( NaO , 2Br03 ) and the microcosmic salt ( NaO , NH'O , PO , HO ) . Charcoal and the platinum wire are used as supports for this kind of operation . ( d . ) Oxidation . The chemical combination of any substance with oxygen is ...
Page 19
... borax , upon a platinum wire , about the sixteenth of an inch from the point of the blue cone . In the pure oxidation flame , a clear yellowish glass is formed ; but as soon as the reduction flame reaches it , or the point of the blue ...
... borax , upon a platinum wire , about the sixteenth of an inch from the point of the blue cone . In the pure oxidation flame , a clear yellowish glass is formed ; but as soon as the reduction flame reaches it , or the point of the blue ...
Page 21
... borax , upon a platinum wire , in the oxidation flame , when a violet - red glass will be obtained ; or if too much of the oxide be used , a glass of a dark color and opaque will be obtained . By submitting this glass to the reduction ...
... borax , upon a platinum wire , in the oxidation flame , when a violet - red glass will be obtained ; or if too much of the oxide be used , a glass of a dark color and opaque will be obtained . By submitting this glass to the reduction ...
Page 26
... ( borax or microcosmic salt ) some of which will adhere , when we fuse it in the flame of the blowpipe to a bead . This bead hanging in the hook , must be clear and colorless . Should there not adhere a sufficient quantity of the flux in ...
... ( borax or microcosmic salt ) some of which will adhere , when we fuse it in the flame of the blowpipe to a bead . This bead hanging in the hook , must be clear and colorless . Should there not adhere a sufficient quantity of the flux in ...
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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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