Quote Originally Posted by Shadowtracker View Post
I wonder if order-of-mixing has anything to do with the crystal formation?
No it makes no difference.

I now make up my concentrated developers using Potassium Carbonate and Sodium Hydroxide instead of Sodium Carbonate and this works well. This is in fact how commercial liquid concentrates are prepared and my stock lasts well over 6 months in a half full bottle with no crystallisation even in the winter in an unheated darkroom.