[Darkroom] Hello and looking for liquid bromine
Kelly
hurtstotouchfire at gmail.com
Thu Jun 30 00:11:07 UTC 2011
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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