`to` Aliphatic diazonium salts which are formed from `1^(@)` - aliphatic amines are highly unstable and liberate nitrogen gas and alcohols.
`to` Aromatic diazonium salts formed from `1^(@)` - aromatic amines are stable for a short time in solution at low temperatures `(0-5^(@)C)`. The stability of arene diazonium ion is explained on the basis of resonance.
