[Darkroom] Hello and looking for liquid bromine

Christian Rice clrice at gmail.com
Fri Jul 15 13:27:26 PDT 2011


Handling (and heating) mercury should usually occur outdoors, or in a
properly-ventilated fume hood, same for bromine.  I'm not sure how many CFM
the fan in the darkroom evacuates, or where it goes--anyone know those
details?

Does Noisebridge have a chemical locker, or secure roof access where a
storage unit might be placed?

And yes, I offered to do a demo in the fall.  I'm still building some
portable bits to make that possible.

On Thu, Jul 14, 2011 at 8:30 PM, Jasmine Strong
<jasmine at electronpusher.org>wrote:

>
> One word of warning-  can you be super super careful with mercury around
> the darkroom?  Mercury fogs film.
>
> -J.
>
> On 14 Jul 2011, at 18:35, Ben Rupert wrote:
>
> > Hey everyone, sorry I disappeared recently.  Been a rough couple weeks.
> > Hopefully I can get back to this soon, I haven't forgotten about it.  I
> > see that there are some chemicals on the wiki, it's a good start and we
> > should be able to order everything people have asked for.  We can add
> > more as well or go with what's there.
> >  Also Christian, I believe that you offered to do a Daguerreotype demo
> > sometime this fall.  I would be quite interested.
> >
> > Ben
> >
> > On 07/06/2011 01:27 PM, Kelly wrote:
> >> Your wishlist goes here:
> >> https://www.noisebridge.net/wiki/Darkroom/Chemical_Purchasing
> >>
> >> Everyone who wants to order chems should add some so that Ben can
> >> assemble a reasonable first shopping list. We need to also have
> >> "educational" uses for them.
> >>
> >> -Kelly
> >>
> >> On Wed, Jul 6, 2011 at 11:49, Ben Rupert <meowdip at gmail.com> wrote:
> >>> I did make it to Noisebridge and the bromine is on the shelf with other
> >>> chemicals above the developing table/sink.  I'm on my phone now so
> don't
> >>> want to type a lot but will respond to the other questions and comments
> >>> tonight.
> >>>
> >>> Ben
> >>>
> >>> On Jul 6, 2011 11:45 AM, "Christian Rice" <clrice at gmail.com> wrote:
> >>>> Ben, a few questions for you:
> >>>>
> >>>> - Is there anything you need from me to facilitate the opening of an
> >>>> account, any initial order requirement? If so, I will supply $$ for
> some
> >>>> sturdy containment vessels and more bromine.
> >>>>
> >>>> - did you happen to make it by Noisebridge on Tuesday?
> >>>>
> >>>> - chemical ordering: when I look at liquid bromine, the published qty
> >>>> measurement tends to vacillate between mg and ml. There tends to be
> 99.5%
> >>>> ACS (mg), 99.8% (mg) and 99.998% (metals basis, ml). The pricing and
> >>>> packaging of the lower two (looking at Alfa's website) vary oddly, and
> it
> >>>> seems the middle ground is the best price point (item #00905, 250mg or
> >>>> 1kg),
> >>>> by far. Can you shed any light on what's going on?
> >>>>
> >>>> - what kind of cap would you recommend on a glass bottle of this
> >>>> stuff--PTFE, teflon-lined, or something else?
> >>>>
> >>>> Sorry to pester, my particular needs may not fall entirely in line
> with
> >>>> the
> >>>> normal darkroom activities. But then again, it would be my pleasure to
> do
> >>>> a
> >>>> Daguerreotype demonstration at Noisebridge in the fall, if there was
> >>>> interest. It might go well coupled with other chemistry demos, as so
> much
> >>>> of the process deals with basic elements (copper, silver, gold,
> iodine,
> >>>> bromine, mercury). In fact, it would be really awesome to have a
> chemist's
> >>>> commentary to augment my largely practical understanding of the
> process.
> >>>> Could make a neat educational video...
> >>>>
> >>>> By the way, I do have a fairly large amount of Hg--maybe more than
> I'll
> >>>> use
> >>>> in my lifetime. The longer I've had my feelers out for such chemicals,
> the
> >>>> more people come out of the woodwork with their old carburetor sync
> kits
> >>>> they want to get rid of. One guy gave me a couple pounds in a single
> >>>> jar...
> >>>>
> >>>> On Fri, Jul 1, 2011 at 5:19 PM, Ben Rupert <meowdip at gmail.com> wrote:
> >>>>
> >>>>> Hit reply rather than reply all, see below:
> >>>>>
> >>>>> On 07/01/2011 05:09 PM, Ben Rupert wrote:
> >>>>>> I'll be over to noisebridge during the day on Tuesday. I'll bring
> the
> >>>>>> bromine then and leave it in the darkroom and well labelled. I'm not
> >>>>>> sure if we would have to have some sort of paperwork that we don't
> have
> >>>>>> to buy the mercury when we do want more, but I think everything else
> >>>>>> would be fine.
> >>>>>> As for web pages to look through for chemicals, try these:
> >>>>>> http://www.sigmaaldrich.com/united-states.html
> >>>>>> http://www.fishersci.com/ecomm/servlet/home?storeId=10652
> >>>>>> http://www.alfa-chemcat.com/en/gh100w.pgm
> >>>>>> http://www.acros.com/
> >>>>>>
> >>>>>> I'm not going to try to set up accounts at all of these places, but
> >>>>>> let's get together some lists of things we want and then figure out
> one
> >>>>>> or two to order from.
> >>>>>>
> >>>>>> Ben
> >>>>>>
> >>>>>> PS. we will probably need some paperwork proving we are an
> educational
> >>>>>> non-profit. This exists, correct?
> >>>>> _______________________________________________
> >>>>> Darkroom mailing list
> >>>>> Darkroom at lists.noisebridge.net
> >>>>> https://www.noisebridge.net/mailman/listinfo/darkroom
> >>>>>
> >>>
> >>> _______________________________________________
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> >>>
> >>>
> >>
> >
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