How can i dispose of chemicals safely
I have recently gotten fascinated with chemistry, and I am looking to start it as a hobby. However one, of the things I want to have under control before i start is chemical disposal. Does anyone know a good cheap company I can hire for hazardous materials disposal? I have heard from a printer friend of mine that there are companies who will even pay for the waste because they re-purpose/recycle it.
Or, is there a way of determining what is and isn't safe to dispose of down the drain? Could I convert whatever waste I have back into a safe form and dispose of it that way?
Any information would be helpful