| 单词 | platinum black |
| 例句 | A limpid, colorless, inflammable liquid from the slow oxidation of alcohol under the influence of platinum black. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z If the plates be covered with a deposit of platinum black, in which the gases are absorbed as fast as they are produced, the minimum decomposition point is 1.07 volt, and the process is reversible. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z This is important, as if the platinum black becomes wet, it loses its absorbing power for the gases almost completely and stops the work of the battery. Scientific American Supplement, No. 717, September 28, 1889 Acetylene combines with hydrogen in the presence of platinum black, and ethylene and then ethane result. Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power Both sides of this diaphragm are covered with very fine platinum leaf perforated with very numerous small holes, and over this a thin film of platinum black. Scientific American Supplement, No. 717, September 28, 1889 |
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