A new convenient and environmentally benign procedure for synthesis of azines from hydrazine sulfate with several aromatic aldehydes coupled with grinding is studied. This reaction is carried out under solvent-free conditions and in absence of catalyst to afford high yields of relevant azines. A new convenient and environmentally benign procedure for synthesis of azines from hydrazine sulfate with several aromatic aldehydes coupled with grinding is studied. This reaction is carried out under solvent-free conditions and in absence of catalyst to afford high yields of relevant azines.