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
