[Darkroom] Hello and looking for liquid bromine

[Kelly]

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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