Re: OT Stop bath

[Peter J. Alling]

[EMAIL PROTECTED] wrote:
Quoting Scott Loveless <[EMAIL PROTECTED]>:
 

On Mon, 21 Mar 2005 11:39:47 -0600, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:
   

Not that I do b&w developing at all these days, but I've been wondering
     

since
   

back when I *did* do it -- as a point of interest, is there any variety
     

of
   

vinegar pure enough to substitute or to prepare a substitute? since it's
effectively the same chemical?
ERNR
     

I just got an email off-list about this.  Basically, the understanding
is that white vinegar (spirit not malt) is about 4-5% acetic acid.  A
1+1 dilution with distilled water should produce the proper strength
for use.  It's much less complicated than overpaying to ship stop
bath.
   

Rather wishing I'd known this several years ago, but oh well.
You would lose the indicator that typically comes in stop bath, but I'm sure 
there's a workaround for that, too. Those nice indicator strips, maybe? 
Surely, not being liquid, those aren't "hazardous" :-)

ERNR
 

I believe you can buy the indicator separately.
--
I can understand why mankind hasn't given up war. 
During a war you get to drive tanks through the sides of buildings 
and shoot foreigners - two things that are usually frowned on during peacetime.
	--P.J. O'Rourke