im1badpup1
Well-known member
- Joined
- Oct 25, 2017
- Messages
- 90
hi im curious as to what is giving the gold finger solution this colour as im washing it with hot - almost boiling water?
my thought was something from the pcb board whats soluble in hcl. maybe the masking or a plasticiser.
heres a pic of fingers in hcl solution soaking.View attachment 1
im using 36.6% hcl diluted slightly. just enough to stop it actively 'fuming' and bubbling a little pure oxygen through. i get my o2 free and its silent to run its the only reason i use it.
anyway im curious to what the orangy yellow is so i can dispose of it correctly thats all. there is a slight smell reminds me of a type of plastic resin so i assume thats correct?
edit my post here, does this stuff interfere with further recovery and refining procedures and what point does it usually come out at?
i can just basify this solution to ph12 and steam distill for around 20minutes to remove ovet 99% of it if thats more desirable. i think its actually a polymer. we get it as waste undesirable side products in organic chemistry reactions.
my thought was something from the pcb board whats soluble in hcl. maybe the masking or a plasticiser.
heres a pic of fingers in hcl solution soaking.View attachment 1
im using 36.6% hcl diluted slightly. just enough to stop it actively 'fuming' and bubbling a little pure oxygen through. i get my o2 free and its silent to run its the only reason i use it.
anyway im curious to what the orangy yellow is so i can dispose of it correctly thats all. there is a slight smell reminds me of a type of plastic resin so i assume thats correct?
edit my post here, does this stuff interfere with further recovery and refining procedures and what point does it usually come out at?
i can just basify this solution to ph12 and steam distill for around 20minutes to remove ovet 99% of it if thats more desirable. i think its actually a polymer. we get it as waste undesirable side products in organic chemistry reactions.