[Darkroom] Hello and looking for liquid bromine

Ben Rupert meowdip at gmail.com
Wed Jun 29 21:15:52 PDT 2011


Christian, I'll probably contact Fisher, Aldrich and Alfa.  Aldrich is
by far the biggest supplier of "fine chemicals," that is the ones which
are used on a lab scale rather than industrial scale.  I might go for a
few smaller companies as well, but I'll get to those after the larger
ones who will have everything we would ever want.  I haven't heard of
labdepotinc but will definitely check them out.

Ben

On 06/29/2011 09:01 PM, Christian Rice wrote:
> Wow y'all are fast.  Does it bear in-person discussion, or are y'all too
> agile for that?
> 
> There are a ton of lab supply companies.  I am most familiar with Fisher
> Scientific and Spectrum Chemicals.  They're like the "root domains", as
> in, the smaller cats with sparkly web sites
> (<http://labdepotinc.com>labdepotinc.com <http://labdepotinc.com>)
> source from them.  Forget about the foreign results on the web--minimum
> lot sizes are like cargo containers.
> 
> I'm going to suggest labdepotinc, because they have both reagent ACS and
> economic grades of most things, and tons of ancillary equipment.
> 
> But I'm also going to suggest treading carefully, and, as in my previous
> post, making sure a chemistry wiz is at the ready for the potential
> discussion with the supplier. There are trick questions--you might think
> "duh," but there can be a fine line between getting an account and
> oversharing :)
> 
> 
> --christian
> 
> On Jun 29, 2011, at 20:36, Kelly
> <<mailto:hurtstotouchfire at gmail.com><mailto:hurtstotouchfire at gmail.com>hurtstotouchfire at gmail.com
> <mailto:hurtstotouchfire at gmail.com>> 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"
>> <<mailto:meowdip at gmail.com><mailto:meowdip at gmail.com><mailto:meowdip at gmail.com>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><http://www.kimberlyaustin.net/about.html><http://www.kimberlyaustin.net/about.html>http://www.kimberlyaustin.net/about.html>
>> >>
>> >>
>> >>
>> >> On Wed, Jun 29, 2011 at 5:42 PM, david pan
>> <<mailto:kaptures at gmail.com><mailto:kaptures at gmail.com><mailto:kaptures at gmail.com>kaptures at gmail.com
>> <mailto:kaptures at gmail.com>
>> >>
>> <mailto:<mailto:kaptures at gmail.com><mailto:kaptures at gmail.com><mailto:kaptures at gmail.com>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
>> <<mailto:hurtstotouchfire at gmail.com><mailto:hurtstotouchfire at gmail.com><mailto:hurtstotouchfire at gmail.com>hurtstotouchfire at gmail.com
>> <mailto:hurtstotouchfire at gmail.com>
>> >>
>> <mailto:<mailto:hurtstotouchfire at gmail.com><mailto:hurtstotouchfire at gmail.com><mailto:hurtstotouchfire at gmail.com>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
>> <<mailto:meowdip at gmail.com><mailto:meowdip at gmail.com><mailto:meowdip at gmail.com>meowdip at gmail.com
>> <mailto:meowdip at gmail.com>
>> >>
>> <mailto:<mailto:meowdip at gmail.com><mailto:meowdip at gmail.com><mailto:meowdip at gmail.com>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
>> >>
>> <<mailto:clrice at gmail.com><mailto:clrice at gmail.com><mailto:clrice at gmail.com>clrice at gmail.com
>> <mailto:clrice at gmail.com>
>> <mailto:<mailto:clrice at gmail.com><mailto:clrice at gmail.com><mailto:clrice at gmail.com>clrice at gmail.com
>> <mailto:clrice at gmail.com>>
>> >> >>
>> <mailto:<mailto:clrice at gmail.com><mailto:clrice at gmail.com><mailto:clrice at gmail.com>clrice at gmail.com
>> <mailto:clrice at gmail.com>
>> <mailto:<mailto:clrice at gmail.com><mailto:clrice at gmail.com><mailto:clrice at gmail.com>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
>> >>
>> <<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>jasmine at electronpusher.org
>> <mailto:jasmine at electronpusher.org>
>> <mailto:<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>jasmine at electronpusher.org
>> <mailto:jasmine at electronpusher.org>>
>> >> >>
>> <mailto:<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>jasmine at electronpusher.org
>> <mailto:jasmine at electronpusher.org>
>> >>
>> <mailto:<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>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
>> >> >>
>> <<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>jasmine at electronpusher.org
>> <mailto:jasmine at electronpusher.org>
>> >>
>> <mailto:<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>jasmine at electronpusher.org
>> <mailto:jasmine at electronpusher.org>>
>> >>
>> <mailto:<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>jasmine at electronpusher.org
>> <mailto:jasmine at electronpusher.org>
>> >>
>> <mailto:<mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org><mailto:jasmine at electronpusher.org>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><http://www.youtube.com/watch?v=b9zB6_-vzSM><http://www.youtube.com/watch?v=b9zB6_-vzSM>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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