Re: uranium oxide

Kate,

   Depleated simply means that the U-235 isotope has been removed. Natural
uranium is mostly U-238 and that is what remains and it is very radioactive.
  I am a retired nuclear physicist. I don't care what the potters handbook
says, you want to be careful with that stuff.

Bob Schramm
Check out my web page at:

  http://www.SchrammStudio.com

>From: Kate Mahoney <kateb@paradise.net.nz>
>Reply-To: alt-photo-process-l@sask.usask.ca
>To: alt-photo-process-l@sask.usask.ca
>Subject: Re: uranium oxide
>Date: Sun, 28 Mar 2004 23:24:05 +1200
>
>I have a ceramics student at hand who assures me that the black uranium
used
>in glazes is depleted and not highly radioactive....:) in fact he looked
it
>up in the potters dictionary on the spot
>
>Kate
>
>----- Original Message -----
>From: "Robert W. Schramm" <schrammrus@hotmail.com>
>To: <alt-photo-process-l@sask.usask.ca>
>Sent: Sunday, March 28, 2004 11:22 AM
>Subject: Re: uranium oxide
>
>
> >
> > Black uranium oxide is just that---uranium oxide. It is used in
ceramics
> > glazes. The "yellow stuff" is uranium nitrate. They are
not
>interchangable.
> >
> > Not trying to be nasty, but if one does not know the difference
between
>an
> > oxide and a nitrate, maybe one should not be dealing with this
stuff.
> >
> > Both of these compounds are dangerous. Of course they are both
>radioactive.
> >
> > I believe that the oxide is not soluable in water. The nitrate is
soluable
> > in water and can be absorbed through the skin. I wouldn't want to
breath
> > any of the oxide powder. I would think it would hang around in the
lungs
>for
> > quite a while.
> >
> > Just a word of caution. The larger the mass of the sample, the
more
> > radiation produced. A pound sounds to me like a lot. I hope its in
a
>sealed
> > container.
> >
> >
> > Bob Schramm
> > Check out my web page at:
> >
> > http://www.SchrammStudio.com
> >
> >
> >
> >
> >
> >
> >
> >
> > >From: Barry Kleider <bkleider@sihope.com>
> > >Reply-To: alt-photo-process-l@sask.usask.ca
> > >To: alt-photo-process-l@sask.usask.ca
> > >Subject: Re: uranium oxide
> > >Date: Sat, 27 Mar 2004 16:46:43 -0600
> > >
> > >I don't know you.
> > >We never met.
> > >I don't know the words to the Internationale.
> > >I've never read theKoran.
> > >And I never sent this email.
> > >
> > >Barry Kleider
> > >Photographer. Arts Educator.
> > >612.722.9701
> > >email: bkleider@sihope.com
> > >Web: www.barryphotography.com
> > >
> > >
> > > ----- Original Message -----
> > > From: Michael Healy
> > > To: alt-photo-process-l@skyway.usask.ca
> > > Sent: Saturday, March 27, 2004 1:37 AM
> > > Subject: uranium oxide
> > >
> > >
> > > I just scored a quantity (a couple pounds, I think) of
"black
> > uranium oxide". It really is black. This stuff doesn't
look at all
>like
> > the vials of yellow stuff I've purchased on eBay in gram form. I'm
>wondering
> > about the difference. Rifling through Google, I'm looking for one,
but I'm
> > not getting every far. So I'm wondering - does anybody know what
BLACK
> > uranium oxide is, and why it's different from the yellow stuff?
> > >
> > > In case you're wondering, this is NOT Ashcroft-related,
not in my
> > opinion, anyhow. (If they come for me, tho, there's really no
arguing...)
> > This is strictly for toning. But the black stuff may be for
ceramic
>glazes.
> > It seems to have a melting point just this side of what they
detonated
>over
> > Nevada in 1944.
> > >
> > > Mike
> >
> > _________________________________________________________________
> > Get tax tips, tools and access to IRS forms - all in one place at
MSN
>Money!
> > http://moneycentral.msn.com/tax/home.asp
> >
> >
>

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Received on Sun Mar 28 17:40:18 2004