[labnetwork] BOE clean up

[Morrison, Richard H., Jr]

Those most likely are ammonium fluoride crystals, in the past I have used just plain old DI maybe heat it up a little that should dissolve the material.

Rick


From: labnetwork-bounces at mtl.mit.edu [mailto:labnetwork-bounces at mtl.mit.edu] On Behalf Of Josh Heinemann
Sent: Monday, February 25, 2019 12:28 PM
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] BOE clean up

Hi,

I appreciate any feedback you can give me.  We have a clogged valve from our BOE etch tank.  Does anyone know what is the best chemical to dissolve salt crystals which may have formed in the valve?

Best regards,

--
Joshua Heinemann
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