I was planning to synthesize a complex with NO as ligand, but it is difficult here in the Philippines to order NO gas, so I had to synthesize NO gas from simple precursors. I have read that reduction of NItric Acid (HNO3) to Nitric Oxide (NO) is feasible using Copper (Cu) as catalyst. can someone tell me what is the exact procedure for the reduction process. I know its a bit dangerous as to dealing with NO gases because it can lead to death when exposed in large amounts.

I hope you can help me guys. :)