[Darkroom] Hello and looking for liquid bromine

Ben Rupert meowdip at gmail.com
Wed Jun 29 18:33:00 PDT 2011


I do have a few ML of bromine I can bring to noisebridge.  It might take
me a few days to get it there though.  Maybe even early next week.
  Also, Kelly, I think we should be able to get the major chemical
supply houses to sell to us.  They don't sell to individuals, but if I
call up and tell them that we're an educational non-profit planning a
bunch of science demos they will probably let us establish an account.
After that we can order anything that doesn't require a federal license
(drugs and explosives).  We will have to have some official looking
payment method, but we can figure that out.

Ben

On 06/29/2011 05:43 PM, david pan wrote:
> 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
> <mailto: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
>     <mailto: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
>         <mailto: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>
>         >> <mailto: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>
>         >>     <mailto: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>
>         <mailto: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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