<p>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.</p>
<p>Ben</p>
<div class="gmail_quote">On Jul 6, 2011 11:45 AM, "Christian Rice" <<a href="mailto:clrice@gmail.com">clrice@gmail.com</a>> wrote:<br type="attribution">> 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 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 the<br>> normal darkroom activities. But then again, it would be my pleasure to do 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 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 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">http://www.sigmaaldrich.com/united-states.html</a><br>>> > <a href="http://www.fishersci.com/ecomm/servlet/home?storeId=10652">http://www.fishersci.com/ecomm/servlet/home?storeId=10652</a><br>
>> > <a href="http://www.alfa-chemcat.com/en/gh100w.pgm">http://www.alfa-chemcat.com/en/gh100w.pgm</a><br>>> > <a href="http://www.acros.com/">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">https://www.noisebridge.net/mailman/listinfo/darkroom</a><br>>><br></div>