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platinum black
noun
, Chemistry.
- a black powder consisting of very finely divided metallic platinum, used as a catalyst, especially in organic synthesis.
platinum black
noun
- chem a black powder consisting of very finely divided platinum metal. It is used as a catalyst, esp in hydrogenation reactions
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Word History and Origins
Origin of platinum black1
First recorded in 1850–55
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Example Sentences
Acetylene combines with hydrogen in the presence of platinum black, and ethylene and then ethane result.
From Project Gutenberg
Platinum black is simply platinum in a fine state of division, and is readily obtained as follows:—1.
From Project Gutenberg
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