“Adams catalyst”的概念、定义、翻译、参考文献-科学参考

Adams catalyst

Chemistry

A dark brown powder, a hydrated form of platinum (IV) oxide (PtO₂), produced by heating chloroplatinic acid (H₂PtCl₆) with sodium nitrate (NaNO₃). Platinum nitrate is produced, and this decomposes to platinum (IV) oxide with evolution of NO₂ and oxygen. It is used in hydrogenations of alkenes to alkanes, nitro compounds to aminos, and ketones to alcohols. The actual catalyst is not the oxide but finely divided platinum black, which forms during the hydrogenation reaction. The Adams catalyst is named after Roger Adams (1889–1971), who discovered it with his student V. Voorhees in 1922.

单词	Adams catalyst
释义	Adams catalyst Chemistry A dark brown powder, a hydrated form of platinum (IV) oxide (PtO₂), produced by heating chloroplatinic acid (H₂PtCl₆) with sodium nitrate (NaNO₃). Platinum nitrate is produced, and this decomposes to platinum (IV) oxide with evolution of NO₂ and oxygen. It is used in hydrogenations of alkenes to alkanes, nitro compounds to aminos, and ketones to alcohols. The actual catalyst is not the oxide but finely divided platinum black, which forms during the hydrogenation reaction. The Adams catalyst is named after Roger Adams (1889–1971), who discovered it with his student V. Voorhees in 1922.
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