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 10
... combination of an organic or inor- ganic nature . The apparatus used for this purpose are crucibles of pla- tinum or silver , platinum foil , a platinum spoon , platinum wire or tongs , charcoal , glass tubes , and iron spoons . ( b ...
... combination of an organic or inor- ganic nature . The apparatus used for this purpose are crucibles of pla- tinum or silver , platinum foil , a platinum spoon , platinum wire or tongs , charcoal , glass tubes , and iron spoons . ( b ...
Page 11
... combination which is soluble in water and acids , the operation is termed unclosing . These substances are particularly the silicates and the sulphates of the alkaline earths . The usual reagents resorted to for this purpose are ...
... combination which is soluble in water and acids , the operation is termed unclosing . These substances are particularly the silicates and the sulphates of the alkaline earths . The usual reagents resorted to for this purpose are ...
Page 24
... combination with the substance while it is exposed to fusion or ignition . Appropriate supports for the different blowpipe experiments are charcoal , platinum instruments , and glass tubes . ( a . ) Charcoal . - The value of charcoal as ...
... combination with the substance while it is exposed to fusion or ignition . Appropriate supports for the different blowpipe experiments are charcoal , platinum instruments , and glass tubes . ( a . ) Charcoal . - The value of charcoal as ...
Page 32
... ones . A microscope , an instrument with two lenses , or with such a combination of lenses , that they may be used double or single , is frequently necessary for the examination of blowpipe experi- ments 32 THE BLOW PIPE .
... ones . A microscope , an instrument with two lenses , or with such a combination of lenses , that they may be used double or single , is frequently necessary for the examination of blowpipe experi- ments 32 THE BLOW PIPE .
Page 109
... combination . There is nothing , perhaps , which will contribute more readily to the progress of the pupil , than thorough practice with the reactions recommended in this part of the work , for when once the student shall have acquired ...
... combination . There is nothing , perhaps , which will contribute more readily to the progress of the pupil , than thorough practice with the reactions recommended in this part of the work , for when once the student shall have acquired ...
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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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