[Darkroom] Hello and looking for liquid bromine

david pan kaptures at gmail.com
Wed Jun 29 17:43:43 PDT 2011


duh, ooops.  n00b error.

*Kimberly Austin* <http://www.kimberlyaustin.net/about.html>



On Wed, Jun 29, 2011 at 5:42 PM, david pan <kaptures at gmail.com> wrote:

> 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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>> >>
>> >>
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