[pure-silver] Re: Citric Acid as stop bath
- From: Gerald Koch <gerald.koch@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sat, 16 Oct 2010 08:41:10 -0700 (PDT)
I once had to use powdered boric acid in a developer when I had run out of the
crystalline form. I think the other ingredients help with the disolution. But
if you don't have a stirrer solution in water is much more difficult.
Jerry
________________________________
From: harry kalish <hksvk@xxxxxxxxxxx>
To: pure-silver@xxxxxxxxxxxxx
Sent: Fri, October 15, 2010 9:17:37 PM
Subject: [pure-silver] Re: Citric Acid as stop bath
True, but my magnetic stirrer does a pretty quick job of getting it dissolved
when I’m building D-76, with just a bit of help from a manual stirring rod. The
D-76 formula also specifies crystalline boric acid, but I’ve used the powdered
because it was easiest for me to buy at my local chain pharmacy (CVS).
Harry.
On 10/14/10 9:54 AM, "Gerald Koch" <gerald.koch@xxxxxxx> wrote:
Powdered boric acid tends to clump up and float when added to water naking it
difficult to dissolve.
>Jerry
>
________________________________
From:harry kalish <hksvk@xxxxxxxxxxx>
>To: pure-silver@xxxxxxxxxxxxx
>Sent: Wed, October 13, 2010 9:50:04 PM
>Subject: [pure-silver] Re: Citric Acid as stop bath
>
>Why does it need to be crystalline? Thanks, Harry
>
>
>On 10/13/10 2:06 PM, "Gerald Koch" <gerald.koch@xxxxxxx> wrote:
>
>
>Use crystalline boric acid rather than the powder
>>
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