A new anti-friction metal
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Article
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1912
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Elsevier Science
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English
β 58 KB
Owing to its small vapor pressure at the melting point, it is not possiblc, with ordinary airpumps, to obtain solid oxygen by evaporation of the liquid, as is the case with hydrogen or nitrogen. If, however, purc liquid oxygen, contained in a propcrly-isolatcd vessel, be subiectcd to the exhaust pro