[Darkroom] Hello and looking for liquid bromine

david pan kaptures at gmail.com
Wed Jun 29 17:42:30 PDT 2011


I really can't recall the photographer I am thinking of.  It might be
Kimberly Austin, she mixes all her own emulsions by hand (for van dyke,
cyanotype, gum bichromate)...  I just don't think it was her that I had met
a few years ago.

I also thought of the photo center in the east bay, is it Hayward?  IIRC,
they do a lot of teaching there and had previously focused on film/darkroom
& alt-process developing.  I think it is in a community center or some
similar site.

Well, without wanting to be an imposition here, I will wish you well on your
endeavors.

Cheers.



On Wed, Jun 29, 2011 at 5:11 PM, Kelly <hurtstotouchfire at gmail.com> wrote:

> Hey Ben, I was actually going to ping you about this anyway.
>
> Maybe it's not a good way to go for bromine in particular, but any
> idea if we can use our non-profit status to get better chem sources? I
> know we've discussed institutional suppliers in the past.
>
> -Kelly
>
> On Wed, Jun 29, 2011 at 07:07, Ben Rupert <meowdip at gmail.com> wrote:
> > I might have some liquid bromine, I'll check and get back to the list.
> > Also I didn't watch the video on electrolytic bromine generation, but I
> > have a power supply made for electroplating metals which should work for
> > oxidizing Br- to Br2.
> >
> > Ben
> >
> > On 06/29/2011 02:03 AM, david pan wrote:
> >> Hi,
> >>
> >> I have no experience with these things myself.  I tend to work with
> >> safer, more 'boring' soup ingredients (wine, coffee, tea, etc) as my
> >> film developers.
> >>
> >> You may want to try asking in the photo department at CCSF.  They have
> >> some very capable faculty.  I also seem to remember a professional
> >> photographer in the east bay who did a lot of Van  Dyke brown and
> >> cyanotype and other homemade process photography.  I can't remember, I'd
> >> only met her once or twice.  I think she lives in Orinda or Berkeley for
> >> some reason. I don't recall if she did dagguerotype too.  If I can find
> >> her name, I'll let you know.
> >>
> >> Dunno if this helps at all.  Cheers.
> >>
> >> David
> >>
> >> --------------------------------------------
> >>
> >> On Wed, Jun 29, 2011 at 1:47 AM, Christian Rice <clrice at gmail.com
> >> <mailto:clrice at gmail.com>> wrote:
> >>
> >>     Another aspect of this procedure that seems like it wouldn't work
> >>     for me is I don't want bromine water--I want to drip some liquid
> >>     bromine onto a bed of silica gel crystals.  The moisture from
> >>     bromine water is not good for my fuming process.
> >>
> >>     I think distillation might be the answer to that (as if I'd know);
> >>     but it's a lot easier to talk about than for me to accomplish.
> >>     Isolating bromine is not something one wants to mess up with...
> >>
> >>     You seem to be confident with chemistry...where does that come from,
> >>     if I may ask?
> >>
> >>     Ok, I'm going cross eyed, thanks for the late night responses, I'll
> >>     continue research when the sun rises.
> >>
> >>     --christian
> >>
> >>     On Jun 29, 2011, at 1:25, Jasmine Strong <
> jasmine at electronpusher.org
> >>     <mailto:jasmine at electronpusher.org>> wrote:
> >>
> >>     > ... yeah, he should have used chlorine bleach in place of hydrogen
> >>     peroxide.  It would have worked then.
> >>     >
> >>     > -J.
> >>     >
> >>     > On 29 Jun 2011, at 01:20, Christian Rice wrote:
> >>     >
> >>     >> Hmm, I watched that video, the procedure fails to isolate
> bromine...
> >>     >>
> >>     >> Back to the drawing board for me...
> >>     >>
> >>     >>
> >>     >> --christian
> >>     >>
> >>     >> On Jun 29, 2011, at 0:48, Jasmine Strong
> >>     <jasmine at electronpusher.org <mailto:jasmine at electronpusher.org>>
> wrote:
> >>     >>
> >>     >>>
> >>     >>> On 29 Jun 2011, at 00:43, Jasmine Strong wrote:
> >>     >>>
> >>     >>>> On 29 Jun 2011, at 00:39, Christian Rice wrote:
> >>     >>>>
> >>     >>>>>
> >>     >>>>> Hi there.  I'm working with the mercury daguerreotype process
> >>     and I'm in need of some Br2, the purer, the better, >99.x%.  Water
> >>     sanitizing stuff (pool/spa tablets and powders) won't do.
> >>     >>>>
> >>     >>>> You can make some by electrolyzing bromine solution sold for
> >>     pool/spa use.  In the quantities you need it's certainly not worth
> >>     the expense of going through the hazmat training you'd need to have
> >>     a commercial vendor sell you the stuff.
> >>     >>>
> >>     >>> http://www.youtube.com/watch?v=b9zB6_-vzSM
> >>     >>>
> >>     >>> Here's a process for extracting the stuff.
> >>     >>>
> >>     >>> -J.
> >>     >
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