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 by Anonymous
page 119 of 359 (33%)
page 119 of 359 (33%)
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quantity of acid is present, and yellow when containing a larger
proportion. in the reducing flame. The yellow color of the glass changes to a brown when warm and a chrome-green on cooling. Behavior with Mic. Salt on Platinum wire in the oxidizing flame. As with borax. in the reducing flame. As with borax. * * * * * 32. Oxide of Chromium, Cr^{2}O^{3}. Behavior with Borax on Platinum wire in the oxidizing flame. Affords an intense color, but dissolves slowly. A small proportion colors the glass yellow when warm, and yellowish green when cold; a larger addition produces a dark red color when warm, which, on cooling, becomes yellow and finally a |
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