[Darkroom] Hello and looking for liquid bromine

david pan kaptures at gmail.com
Wed Jun 29 02:03:17 PDT 2011


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> 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>
> 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>
> 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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