Quote Originally Posted by pstake View Post
Thanks, Ian. This is the kind of information I was hoping for.

I plan to mix my own from bulk chemicals (for economy) ... I'm not using Thiourea because I don't want to keep lye around the house.

Do you have any insight about the volume solution of sodium sulfide and its affect on tone?
The Sulphide is to completion and you only need 5g/litre in the working solution. If it's too weak it's likely to be patchy and uneven in the toning.