[Rockhounds] Small quantity chemical supplies

[Axel Emmermann]

Hello Glenn,

This site is too good to believe!
I was looking for some stuff that I need for my spectroscopy experiments.
Measuring an emission spectrum gives you much better results when you do it
at low temperature.  Liquid nitrogen being an excellent coolant, but at
-190°C most mineral species will crack and decrepitate upon immersion.  Dry
ice is much more affordable and still gets you to -80°C.
Okay, you can easily buy a few pounds of that but even when you store it in
a Styrofoam box but it will evaporate in a matter of a day or so.  That is
where the aerogel comes in.  A box made of that stuff would keep dry ice
cold for days!

Another thing that I need for fluorescence spectroscopy is a nitrogen
ultraviolet-laser.  Buying one is out of the question but a homemade model
is certainly within our reach.  I only need a power source that delivers a
few 10,000 volts.  To my amazement decided that you mentioned cells those as
well as Van de Graaff generators.  At ridiculously low prices, I may add.

Yet another project that I've been brooding on its cathodoluminescence.  The
major problem being that you need specialized glassware and a vacuum pump.
Guess what?  They sell that too.

But then, ouch, that the phrase: "we don't ship outside the USA".
Otherwise, fantastic site :-) :-) :-)

Cheers Axel



> -----Oorspronkelijk bericht-----
> Van: rockhounds-bounces at lists.drizzle.com
[mailto:rockhounds-bounces at lists.drizzle.com]
> Namens Glenn Wimpee
> Verzonden: dinsdag 22 september 2009 22:55
> Aan: rockhounds at lists.drizzle.com
> Onderwerp: RE: [Rockhounds] Small quantity chemical supplies
> 
> 
> Try here.
> 
> 
> 
> I purchased a small quantity of Bismuth nuggets from these folks.
> 
> 
> 
> I have have no interest in the company other than as a satisfied customer.
> 
> 
> 
> http://www.unitednuclear.com/chem.htm
> 
> 
> 
> Glenn
> 
> 
> 
> 
> 
> 
> 
>  EMAILING FOR THE GREATER GOOD
> Join me
> 
> 
> > Date: Mon, 21 Sep 2009 20:50:18 -0300
> > From: siniconb at gmail.com
> > To: rockhounds at lists.drizzle.com
> > Subject: [Rockhounds] Small quantity chemical supplies
> >
> > Hi everyone,
> >
> > A month or two ago - I think on this list - someone gave the web site
for a
> > small scale supplier of chemicals. I checked it out at the time and as I
> > recall the site's owner had been annoyed that he could no longer get
> > chemistry set chemicals anywhere and resolved to remedy that lack. I
should
> > have bookmarked it but didn't. Can anyone help?
> >
> > Cheers,
> > Hans Durstling
> > for the nonce in Parrsboro Nova Scotia on the Bay of Fundy
> >
> >
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