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Date: | Tue, 22 Feb 2000 14:07:54 -0500 |
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I've never heard of Bromothymol blue being used as a residual flux
indicator, but it certainly still exist.
Most chemical suppliers have it in stock, it's a regular acid-base
indicator.
It is yellow below a pH of 6.0 and blue above 7.6. (In between, it depends
on other conditions, any colour between yellow and blue).
Hope this helps,
Alain Savard, B.Sc.
Chemical Process Analyst
CAE Electronics Ltd.
e-mail: [log in to unmask]
-----Original Message-----
From: Glenn Pelkey
Subject: [TN] Residual Flux Indicator
Hi all,
Anyone familiar with a dye that can help indicate the presence of
residual flux? I was just talking with another engineer who mentioned a
material called "Bromthymol Blue" that he used to use. Is it still
available
or is there's something better?
Glenn
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