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?<br>
<br>Does Noisebridge have a chemical locker, or secure roof access where a storage unit might be placed?<br><br>And yes, I offered to do a demo in the fall. I'm still building some portable bits to make that possible.<br>
<br><div class="gmail_quote">On Thu, Jul 14, 2011 at 8:30 PM, Jasmine Strong <span dir="ltr"><<a href="mailto:jasmine@electronpusher.org">jasmine@electronpusher.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<br>
One word of warning- can you be super super careful with mercury around the darkroom? Mercury fogs film.<br>
<font color="#888888"><br>
-J.<br>
</font><div><div></div><div class="h5"><br>
On 14 Jul 2011, at 18:35, Ben Rupert wrote:<br>
<br>
> Hey everyone, sorry I disappeared recently. Been a rough couple weeks.<br>
> Hopefully I can get back to this soon, I haven't forgotten about it. I<br>
> see that there are some chemicals on the wiki, it's a good start and we<br>
> should be able to order everything people have asked for. We can add<br>
> more as well or go with what's there.<br>
> Also Christian, I believe that you offered to do a Daguerreotype demo<br>
> sometime this fall. I would be quite interested.<br>
><br>
> Ben<br>
><br>
> On 07/06/2011 01:27 PM, Kelly wrote:<br>
>> Your wishlist goes here:<br>
>> <a href="https://www.noisebridge.net/wiki/Darkroom/Chemical_Purchasing" target="_blank">https://www.noisebridge.net/wiki/Darkroom/Chemical_Purchasing</a><br>
>><br>
>> Everyone who wants to order chems should add some so that Ben can<br>
>> assemble a reasonable first shopping list. We need to also have<br>
>> "educational" uses for them.<br>
>><br>
>> -Kelly<br>
>><br>
>> On Wed, Jul 6, 2011 at 11:49, Ben Rupert <<a href="mailto:meowdip@gmail.com">meowdip@gmail.com</a>> wrote:<br>
>>> I did make it to Noisebridge and the bromine is on the shelf with other<br>
>>> chemicals above the developing table/sink. I'm on my phone now so don't<br>
>>> want to type a lot but will respond to the other questions and comments<br>
>>> tonight.<br>
>>><br>
>>> Ben<br>
>>><br>
>>> On Jul 6, 2011 11:45 AM, "Christian Rice" <<a href="mailto:clrice@gmail.com">clrice@gmail.com</a>> wrote:<br>
>>>> Ben, a few questions for you:<br>
>>>><br>
>>>> - Is there anything you need from me to facilitate the opening of an<br>
>>>> account, any initial order requirement? If so, I will supply $$ for some<br>
>>>> sturdy containment vessels and more bromine.<br>
>>>><br>
>>>> - did you happen to make it by Noisebridge on Tuesday?<br>
>>>><br>
>>>> - chemical ordering: when I look at liquid bromine, the published qty<br>
>>>> measurement tends to vacillate between mg and ml. There tends to be 99.5%<br>
>>>> ACS (mg), 99.8% (mg) and 99.998% (metals basis, ml). The pricing and<br>
>>>> packaging of the lower two (looking at Alfa's website) vary oddly, and it<br>
>>>> seems the middle ground is the best price point (item #00905, 250mg or<br>
>>>> 1kg),<br>
>>>> by far. Can you shed any light on what's going on?<br>
>>>><br>
>>>> - what kind of cap would you recommend on a glass bottle of this<br>
>>>> stuff--PTFE, teflon-lined, or something else?<br>
>>>><br>
>>>> Sorry to pester, my particular needs may not fall entirely in line with<br>
>>>> the<br>
>>>> normal darkroom activities. But then again, it would be my pleasure to do<br>
>>>> a<br>
>>>> Daguerreotype demonstration at Noisebridge in the fall, if there was<br>
>>>> interest. It might go well coupled with other chemistry demos, as so much<br>
>>>> of the process deals with basic elements (copper, silver, gold, iodine,<br>
>>>> bromine, mercury). In fact, it would be really awesome to have a chemist's<br>
>>>> commentary to augment my largely practical understanding of the process.<br>
>>>> Could make a neat educational video...<br>
>>>><br>
>>>> By the way, I do have a fairly large amount of Hg--maybe more than I'll<br>
>>>> use<br>
>>>> in my lifetime. The longer I've had my feelers out for such chemicals, the<br>
>>>> more people come out of the woodwork with their old carburetor sync kits<br>
>>>> they want to get rid of. One guy gave me a couple pounds in a single<br>
>>>> jar...<br>
>>>><br>
>>>> On Fri, Jul 1, 2011 at 5:19 PM, Ben Rupert <<a href="mailto:meowdip@gmail.com">meowdip@gmail.com</a>> wrote:<br>
>>>><br>
>>>>> Hit reply rather than reply all, see below:<br>
>>>>><br>
>>>>> On 07/01/2011 05:09 PM, Ben Rupert wrote:<br>
>>>>>> I'll be over to noisebridge during the day on Tuesday. I'll bring the<br>
>>>>>> bromine then and leave it in the darkroom and well labelled. I'm not<br>
>>>>>> sure if we would have to have some sort of paperwork that we don't have<br>
>>>>>> to buy the mercury when we do want more, but I think everything else<br>
>>>>>> would be fine.<br>
>>>>>> As for web pages to look through for chemicals, try these:<br>
>>>>>> <a href="http://www.sigmaaldrich.com/united-states.html" target="_blank">http://www.sigmaaldrich.com/united-states.html</a><br>
>>>>>> <a href="http://www.fishersci.com/ecomm/servlet/home?storeId=10652" target="_blank">http://www.fishersci.com/ecomm/servlet/home?storeId=10652</a><br>
>>>>>> <a href="http://www.alfa-chemcat.com/en/gh100w.pgm" target="_blank">http://www.alfa-chemcat.com/en/gh100w.pgm</a><br>
>>>>>> <a href="http://www.acros.com/" target="_blank">http://www.acros.com/</a><br>
>>>>>><br>
>>>>>> I'm not going to try to set up accounts at all of these places, but<br>
>>>>>> let's get together some lists of things we want and then figure out one<br>
>>>>>> or two to order from.<br>
>>>>>><br>
>>>>>> Ben<br>
>>>>>><br>
>>>>>> PS. we will probably need some paperwork proving we are an educational<br>
>>>>>> non-profit. This exists, correct?<br>
>>>>> _______________________________________________<br>
>>>>> Darkroom mailing list<br>
>>>>> <a href="mailto:Darkroom@lists.noisebridge.net">Darkroom@lists.noisebridge.net</a><br>
>>>>> <a href="https://www.noisebridge.net/mailman/listinfo/darkroom" target="_blank">https://www.noisebridge.net/mailman/listinfo/darkroom</a><br>
>>>>><br>
>>><br>
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>>><br>
>>><br>
>><br>
><br>
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