Question

Preparation of sodium nitro pruside solution

Answer 1

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Sodium nitroprusside (Na₂[Fe(CN)₅(NO))

Fe(CN)₅NO]₂−+RNH₂→[Fe(CN)₅(H2O)]₃−+N₂+ROH

sometimes co-ordinated to the metal in a complex. Any reaction carried out in basic solution is complicated by the reaction of hydroxide ion (which is reversed in acid solution), generating the nitro ligand within the complex, Eq. The reaction with secondary amines has been examined

[Fe(CN)₅NO]₂−+2OH−=[Fe(CN)₅NO₂]₄−+H₂O