Copper chromiteの意味・使い方・読み方

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出典:『Wikipedia』 (2011/06/11 19:44 UTC 版)

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引用: Copper chromite is a complex inorganic composition Cu₂Cr₂O₅, but often containing barium oxide that is used to catalyse certain reactions in organic synthesis. It was first described in 1908. A variety of composition are recognized including Cr₂CuO₄·CuO·BaCrO₄ (chemical abstracts registry number is 99328-50-4) and Cr₂Cu₂O₅ (CAS# 12053-18-8). The latter is sometimes intentionally poisoned with quinoline, when the catalyst is used for decarboxylation reactions. The catalyst was developed in North America by Homer Burton Adkins and Wilbur Arthur Lazier partly based on interrogation of German chemists after World War II in relation to the Fischer-Tropsch process. For this reason it is referred to as the Lazier catalyst. The catalyst Cr₂CuO₄·CuO·BaCrO₄ is prepared by addition of a solution containing both barium nitrate and copper(II) nitrate to a solution of ammonium chromate. This resulting precipitate is calcined at 350-400 °C.

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