If only the crystallization issue could be solved. A concentrate with a little TEA and mostly PG crystallized. I'm thinking of reversing that by using mostly TEA and minimal PG to thin it some. A little citric acid will bring the pH back down. With so little PG in it, perhaps it won't crystallize.
Originally Posted by Photo Engineer
BTW, I forgot to mention that Phenidone gets slightly grainier as its fog-level rises. The difference is small enough that most people might not notice, but it's perceivable on close exam. That makes it more of a challenge for Phenidone to match the image-quality of Dimezone-S.