[labnetwork] KOH Baths

[Fouad Karouta]

Hi Bill,

We decided a year to get a standing KOH bath (don't recall the supplier name however in US). If unused it is at room temperature and heating to 70-80C is quite fast for usage. We believe it is safer this way as users do not need to make the KOH mixtures which include some hazards. We also monitor regularly the pH of the solution and top up KOH whenever required.

Kind regards, Fouad
________________________________________
From: labnetwork-bounces at mtl.mit.edu [labnetwork-bounces at mtl.mit.edu] on behalf of Bill Flounders [bill at eecs.berkeley.edu]
Sent: 14 December 2013 05:06
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] KOH Baths

Lab Network,
Do any members maintain a standing KOH (30% or other) etch bath;
or do you primarily support individual preparation and use?
Thank you for a brief description of your policy or strategy here.
Sincerely,
Bill Flounders
UC Berkeley

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