[pure-silver] Re: Bleach
- From: harry kalish <hksvk@xxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Fri, 18 Dec 2009 19:40:48 -0500
Tim, I have successfully used tincture of iodine straight from the drugstore
vial, if my memory serves me. But is there a formula for the iodine bleach
to which you refer?
BTW, I bought two of your books from Amazon a few months ago. Nice work! And
thank you.
Harry
On 12/17/09 1:45 PM, "Tim Rudman" <tim@xxxxxxxxxxxxx> wrote:
> Hello Alan,
> The bleach used in sepia toning is potassium ferricyanide (not as awful as it
> sounds!) with an added halide or halides to facilitate redevelopment in the
> toner. The halide is commonly potassium bromide.
>
> For bleaching local areas of a print potassium ferricyanide is usually used
> without the bromide and is either mixed with or followed by fixer.
>
> If the spot is black you will be more successful with an iodine bleach, which
> bleaches down to white whereas PF will leave a pale yellow brown.
>
> If the spot is grey and needs lightening PF is excellent. If black it is
> easier to take to white with iodine and spot in afterwards.
>
> Tim
>
>
> From: pure-silver-bounce@xxxxxxxxxxxxx
> [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of atippett@xxxxxxx
> Sent: 17 December 2009 18:13
> To: pure-silver@xxxxxxxxxxxxx
> Subject: [pure-silver] Bleach
>
>
> It has been recommend that I bleach some spots on a print.
>
>
>
> What is the recommend bleaching agent or agents. (hydrogen peroxide or house
> hold bleach)
>
>
>
> What is the bleach used when sepia toning?
>
>
>
> Alan Tippett
>
>
>
>
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.426 / Virus Database: 270.14.100/2554 - Release Date: 12/16/09
> 08:02:00
>
Other related posts:
