What surprised me about the instructions for Pyrocat-HD in glycol (as per http://www.pyrocat-hd.com/html/mixing.html) is the suggestion that the KBr and metabisulfite is introduced into the glycol as a solution in water - I'd have assumed that this would defeat the object of using glycol, which is to keep water out of the stock solution, isn't it?

Perhaps Ian or Gerald or similarly chymical gentleman could fill me in on why it seems to be OK in this case?