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Reply To: | TechNet E-Mail Forum. |
Date: | Wed, 26 May 1999 09:06:39 -0700 |
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Hi Jonathan:
This is from MSDS of Phibro Tech's High Speed Ac-cu-Guard:
NH4Cl 19 - 27 %
NH4OH 14 - 23 %
NH5CO3 1 - 5 %
Sp. gr.: 1.015 - 1.045
Vapor pressure 96 mmHg
pH 9.4 - 10.4
Hope this'll help.
Yu-Shan Han
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Meigs, Jonathan
Sent: Wednesday, May 26, 1999 6:47 AM
To: [log in to unmask]
Subject: [TN] Ammoniacal Etchant Recipe
Good Morning, Everyone!
I am in need of a quick and dirty recipe for an ammoniacal etchant for use
in one of my lab experiments. I'm not trying to make 2 mil lines and spaces,
but it needs to be ammoniacal.
Can anyone help me with a recipe?
Thanks in advance,
Jonathan Meigs
Product Development Engineer
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