Cupferron

Cupferron, the ammonium salt of N-nitroso-N-phenylhydroxylamine, is a common reagent for the complexation of metal ions. Its formula isNH4. The anion binds to metal cations through the two oxygen atoms, forming five-membered chelate rings. Cupferron, the ammonium salt of N-nitroso-N-phenylhydroxylamine, is a common reagent for the complexation of metal ions. Its formula isNH4. The anion binds to metal cations through the two oxygen atoms, forming five-membered chelate rings. Cupferron is prepared from phenylhydroxylamine and an NO+ source: