platinum black
短语[化] 铂黑
释义与例句
n.
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1.
A soft, dull black powder consisting of finely divided metallic platinum obtained by reduction and precipitation from its solutions. It absorbs oxygen to a high degree, and is employed as an oxidizer.
不可数1923, Ernest Bramah, The Eyes of Max Carrados "In the meanwhile," remarked Carrados, "if you find the time hang heavy on your hands you might look up the subject of 'platinum black.' […] It is a chemical that has the remarkable property of igniting hydrogen or coal gas by mere contact," replied Carrados. "Think how useful that may be if you haven't got a match!"