[pure-silver] Re: Using diluted vinegar as stop bath
- From: Bob Younger <ryounger@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sat, 26 Feb 2011 10:37:44 -0800
Don't discount the use of water as a stop bath. With agitation it is
entirely effective, inexpensive, easily refreshed, and has zero side effects
on paper or fixer. It's the only stop bath I've used for the last couple of
decades.
Bob Younger
On Sat, Feb 26, 2011 at 10:29 AM, Eric Neilsen Photo <
ej@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> The more dilute, the less fast it will and potentially less effective it
> will be it bringing the pH down from above 7 (basic) to below 7. It would be
> better to error on the side of too dilute since you can effectively stop a
> developer with adequate water.
>
>
>
> Advantage to NOT using an indicator is that there is no indicator to
> carrier over into your print. I have seen hypo clearing agent turn purple
> from residual indicator in the paper. Proof was stop using indicator and the
> hypo clean never got a purple color. Indicator goes from yellow to purple.
> The citric acid stop is also effective but thanks to ADM and other users of
> citric acid, the price goes up with food prices.
>
>
>
> Eric Neilsen
>
> Eric Neilsen Photography
>
> 4101 Commerce Street, Suite 9
>
> Dallas, TX 75226
>
>
>
> www.ericneilsenphotography.com
>
> skype me with ejprinter
>
> www.ericneilsenphotography.com/forum1
>
> Let's Talk Photography
>
>
> ------------------------------
>
> *From:* pure-silver-bounce@xxxxxxxxxxxxx [mailto:
> pure-silver-bounce@xxxxxxxxxxxxx] *On Behalf Of *Gerald Koch
> *Sent:* Saturday, February 26, 2011 12:19 PM
> *To:* pure-silver@xxxxxxxxxxxxx
> *Subject:* [pure-silver] Re: Using diluted vinegar as stop bath
>
>
>
> To use as a stop bath it must be white or distilled vinegar. The brown
> form may stain. Check the label as it can be any percentage from 4% to 5%
> depending on the brand. Kodak SB-1 for papers is 2% acetic acid, for films
> the percentage can be 1%. So if you have the 4% version dilute it with an
> equal amount of water for 2%.
>
>
>
> Jerry
>
>
> ------------------------------
>
> *From:* Bogdan <bkarasek@xxxxxxxxxxxx>
> *To:* pure-silver@xxxxxxxxxxxxx
> *Sent:* Fri, February 25, 2011 2:56:37 PM
> *Subject:* [pure-silver] Using diluted vinegar as stop bath
>
> Hello all,
>
> this was discussed a few years back, but do not remember the details. I
> have 3 gallons of kitchen vinegar and I remember it was mentioned that a
> dilution of vinegar could be used as a stop bath. Does anybody know what
> dilution of vinegar to water I should use? Are there any disadvantages to
> using diluted vinegar as opposed to the Indicator Stop made by the great
> yellow Father or Ilford's Stop bath? If I do use diluted vinegar, how can I
> tell when I should dump the bath?
>
> Cheers,
> Bogdan
>
>
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