KOH and NaOH are so hygroscopic that I can't imagine them crystalising from water at any concentration.
But my knowledge is only hobby level.
PS. KOH is supposed to be obtained from wood ash soaked in water,
so after burning quite a lot of wood (to dispose of it) I collected the ashes and added water to make a bucket full of slurry,
that I kept under my outdoor workbench, and gave a stir every day or three.
One day, I found a nice clean EMPTY bucket,
my wife had 'helped' me to tidy up
This experiment is still 'on the list'
[Edited on 18-8-2022 by Sulaiman] |