System of Instruction in the Practical Use of the Blowpipe: Being a Graduated Course of AnalysisD. Van Hostrand, 1868 - 288 ページ |
多く使われている語句
addition of tin alkalies alumina antimony arsenic assay baryta Behavior Mineral bismuth blowpipe blowpipe flame blue color boracic acid borax brown Cadmium carbonate of soda Cerium char charcoal chloride clear bead cobalt colors the flame compounds cooling crystals dark Didymium exposed external flame flame of oxidation flame of reduction forceps fused gives glass becomes glass tube glass-bulb Glucina green color grey hydrate hydrochloric acid ignition incrustation infusible insoluble intermittent flame intumescence lead lime lithia litmus paper magnesia manganese mass melts metallic oxides microcosmic salt moistened Molybdic nickel Niobic nitric acid opaque open tube outer flame oxidation flame oxide of zinc oxygen Pelopic platinum wire potash potassa powder present produce protoxide quan readily red color red heat reducing flame saturated sesquioxide silicates small quantity soluble strontia sublimate substance sulphate sulphide sulphuric acid Telluric Acid tellurium tion Titanic Acid Tungstic vapor violet violet color volatilized yellow color
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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...
1 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.