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 vii
... readily comprehend the entire subject of Blowpipe Analysis than if he were to begin his studies by the perusal of the more copious works of Berzelius and Plattner . When the student shall have gone through these pages , and repeated the ...
... readily comprehend the entire subject of Blowpipe Analysis than if he were to begin his studies by the perusal of the more copious works of Berzelius and Plattner . When the student shall have gone through these pages , and repeated the ...
Page 11
... readily detected . If insoluble sub- stances are fused with others more fusible ( reagents ) for the purpose of causing a combination which is soluble in water and acids , the operation is termed unclosing . These substances are ...
... readily detected . If insoluble sub- stances are fused with others more fusible ( reagents ) for the purpose of causing a combination which is soluble in water and acids , the operation is termed unclosing . These substances are ...
Page 12
... readily be mistaken for others . For this reason , reduction is a very excellent expedient for the purpose of discerning and classifying many substances . B. UTENSILS . We shall give here a brief description of the most necessary ...
... readily be mistaken for others . For this reason , reduction is a very excellent expedient for the purpose of discerning and classifying many substances . B. UTENSILS . We shall give here a brief description of the most necessary ...
Page 18
... readily in many cases , unless the substance is removed a little from the flame ; but if the heat be not too high , it is readily oxidized in the flame , or near its cone . If the current of air is blown too freely or violently into the ...
... readily in many cases , unless the substance is removed a little from the flame ; but if the heat be not too high , it is readily oxidized in the flame , or near its cone . If the current of air is blown too freely or violently into the ...
Page 37
... readily , and is , therefore , a powerful means of oxidation . In blowpipe analysis , we use it particu- larly to convert sulphides ( as those of arsenic , antimony , & c . ) into oxides and acids . We furthermore use saltpetre for the ...
... readily , and is , therefore , a powerful means of oxidation . In blowpipe analysis , we use it particu- larly to convert sulphides ( as those of arsenic , antimony , & c . ) into oxides and acids . We furthermore use saltpetre for the ...
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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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