I have done ferric acid etching on copper and want to know if there is another way than ammonia bath to do the neutralizing something less stinky preferably.

Oh and anyone using pnp paper for transfer should try making a copy using an old canon copier onto regular copy paper (not inkjet paper) and place it face down on cleaned copper. Then take a cottenball lightly moistened with denatured alchol and softly press down until the paper is wet. Slowly and carefully lift the paper off and the toner will have transferred to the copper. This will act as a resist. Note if the image is blurry use less denatured alchol on cottonball. Touch up with sharpies.

Thank you,    Lauren