[Darkroom] Hello and looking for liquid bromine

Ben Rupert meowdip at gmail.com
Wed Jun 29 21:04:20 PDT 2011


Christian- I'm a chemist at Lawrence Livermore National Lab.  I've been
looking to get out of the national labs though and one option is to
start my own lab.  I've picked up a few chemicals and some equipment
here and there, mostly getting things cheap when start-ups have gone out
of business.

Kelly- I'll start looking into what various chemical suppliers want in
order to establish an account.  I can make the phone calls needed once
I've figured out what they want to hear.  I would actually like to do
chemistry demos at Noisebridge, so I'm not going to have to lie to them,
just phrase things carefully.

Ben



On 06/29/2011 08:36 PM, Kelly wrote:
> LET'S DO IT!!
> 
> I can think of plenty of ways we can work out noisebridge official
> payments. Where do we sign up?
> 
> Kelly
> 
> On Jun 29, 2011 6:33 PM, "Ben Rupert" <meowdip at gmail.com
> <mailto:meowdip at gmail.com>> wrote:
>> 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>
>>> <mailto: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>
>>> <mailto: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>
>>> <mailto: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>>
>>> >> <mailto: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>>
>>> >> <mailto: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>>
>>> <mailto: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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