[Darkroom] Hello and looking for liquid bromine

Jasmine Strong jasmine at electronpusher.org
Thu Jul 14 20:30:41 PDT 2011


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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