Dear all,

Hi! First post from here. I was wondering how to dispose safely of Iron (III) Nitrate solution from etching. Can it be diluted and put down the sink or does it need to be sent to a special place?

Is there anything else safer to use or easier to dispose? I have a slow cooker and measure out in weight 4:1 water:nitrate. Is this the best ratio?

Does anyone have any hints and tips on using pcb paper for printing with a laser printer and ironing onto the silver?

I seem to get a better etch with a cold solution for 24hrs than with a hot tank for 2 hours as bubbles form in the hot solution. Any advice on this too?

many thanks one and all,

Ian...