[alt-photo] Hydroquinone, more than 45grs/L 72 hours

[alejandro]

Hello!
My name is Alejandro Martell from spain,
i usually mix "lith" developers, changing one component, or another etc... i
have
a problem, my favourite lith developer  that use Hydroquinone with 40
grs./L works ok, but if i preffer 80grs./L or 60 grs./L (works better), but
always
precipitate 72 hours later more or less "forming crystals", i don´t understand
it, i have
asked to chemical engineer included one especialized forum, but nobody
konws...
I think the answer could be dietilenglicol....  What do you think about? thanks