How is Raney nickel,which is used as a cataly | vedclass

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(B) Raney nickel is a fine-grained solid catalyst composed of nickel derived from a nickel-aluminum alloy. It is prepared by treating the nickel-alumi

Vedclass · Accepted Answer

By treating nickel-aluminum alloy with dilute $NaOH$

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(B) Raney nickel is a fine-grained solid catalyst composed of nickel derived from a nickel-aluminum alloy. It is prepared by treating the nickel-aluminum alloy with a concentrated aqueous solution of sodium hydroxide $(NaOH)$. The aluminum dissolves in the $NaOH$ solution,leaving behind a highly porous,finely divided nickel residue known as Raney nickel. The reaction is: $2Al + 2NaOH + 6H_2O \rightarrow 2Na[Al(OH)_4] + 3H_2$.

How is Raney nickel,which is used as a catalyst,prepared?

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