✧✦Catherine✦✧

me and printer want to remove passivation from some ICs. the obvious solution is HF, but, unfortunately, our chemicals supplier only has it packaged in five point five liter canisters ($30 each, natch)

how do I safely dispose of five liters of hydrofluoric acid

Apr 9, 2017 at 1:54pmWeb
Show thread✧✦Catherine✦✧Apr 9, 2017
that's the same one that is willing to sell me "no less than three kilograms of bromine, pickup only" if you're wondering
Show threadMakdaamApr 9, 2017
@whitequark I think somebody mentioned dental diluted HF gel on one of the hacker cons. I don't decap so I have no hands on experience with it.
Show threadTzetzeApr 9, 2017
@whitequark classic ChemE humor,
https://www.amazon.com/Excuse-Would-Like-Isopropyl-Bromide/dp/B000I3Z28Y
Show threadAndreⓐApr 9, 2017
@whitequark have you considered neutralizing it with cesium hydroxide? :P
Show threadfilsyApr 9, 2017

@whitequark soda ash and pH strips should give you an idea.
that and a lot of water after neuraising it.

and do it late at night where you don't livor something, not that I've ever done that, no sir, what do you mean officer etc.

Show thread✧✦Catherine✦✧Apr 9, 2017
@filsy it's a joke. I know basic chemistry, I just don't ever want to go near that much hydrofluoric acid ever
Show threadfilsyApr 11, 2017
@whitequark yup! that stuff is scary. :fearful: