Jorge, how much of the hydroxde do you use? Same proportions (1:1:100), or more?

(It probably doesn't matter, as the total OH- activity will be high enough to activate the developer anyway. There is a LOT more alkali than developer in that mix&#33

BTW; there's a zero too many in my previous post: A liter of developer contains 0.002g phenidone, not 0.0002. Still a very small amount...