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Scientific American, Vol. 62, No. 16 (April 1890) (1890)
leaf 8
luoride of active matter that chem- platinum by an indirect ists possess. In fact, it ig- way (in starting from hy- nites crystallized silicium, drofluoric acid, for exam- which boiling nitric acid ple), we shall have a chem- does not attack, and which ical process for obtaining pure oxygen burns… … weighed when full of air, long to oxygen very rich Fig. 2.-APPARATUS FOR PREPARING FLUORINE. © 1890 SCIENTIFIC AMERICAN, INC.Arc · Apparatus · Gas · Munn · Scientific American · Patents · Gravity cells · Express money · Horse power · American supplement · Sugar maple · Sewing machine · Electric light · Phonograph cylinder · Small pulley
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