several bands ume, it is easy to determine the density of the fluorine ceeded in splitting up hydrofluoric acid into hydrogen in the yellow and the violet; but the position of these therefrom. Mr. Moissan determined the figure 1'26, and fluorine. Having again taken up this study, he has been… … fluorine in large quan- difficulty at a high tem- Fig. l.-MR. MOISSAN PREPARING FLUORINE GAS IN HIS LABORATORY AT THE SCHOOL OF PHARMACY. tity. perature; and, while chlor- After his preliminary ex- ine is incapable of directly periments, Mr. Moissan combining with carbon, took the density of fluor-…
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