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alkali alumina antimony arsenic assay baryta Behavior bismuth blowpipe blowpipe flame blue color blue flame boracic acid borax cadmium carb carbonate of soda ceding Cerium char charcoal chloride clear bead coal cobalt cold colorless colors the flame compounds cooling crystals dark exposed external flame flame blue flame of oxidation flame of reduction forceps fused fusible fusion glass tube glass-bulb green color grey hydrate hydrochloric acid ignition incrusts the charcoal infusible insoluble intumescence iron lead lime lithia litmus paper lustre magnesia manganese mass melts metallic oxides microcosmic salt Mineral moistened nickel nitric acid opaque open tube outer flame oxidation flame oxygen platinum wire potash potassa powder present produce protoxide reac readily red color red heat reducing flame sesquioxide silicates silver small quantity soluble Special reactions strontia sublimate substance sulphate sulphide sulphuric acid Telluric Acid tellurium tion titanic acid vapor violet violet color volatilized yellow color zinc
16 ページ - 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...
i ページ - THE BLOW-PIPE : A System of Instruction in its practical use being a graduated course of Analysis for the use of students, and all those engaged in the Examination of Metallic Combinations. Second edition, with an appendix and a copious index. By GEORGE W- PLYMPTON, of the Polytechnic Institute, Brooklyn.