Re: pitch blend

["Philippe Duport" <pduport@home.com>]

Pitchblend is uranium ore, which may contain more than 60% natural U ( I saw
such samples at high grade U mines in Saskatchewan).  In the ore, U and all
its decay procucts are in radioactive equilibrium down to stable Pb-206 from
U-238 and stable Pb-207 from U-235.

Philippe


----- Original Message -----
From: "Irene K Sakimoto" <isakimot@hawaii.edu>
To: "Multiple recipients of list" <radsafe@romulus.ehs.uiuc.edu>
Sent: Wednesday, November 29, 2000 3:53 PM
Subject: pitch blend


> Hi Everyone,
>
> Could anyone tell me if there is a radioactive component in pitch
> blend.  We found some in a bottle in a lab and were wondering if we had to
> label it with radioactive stickers or how to dispose it if necessary.
>
> Please respond to me privately.
>
> Thanks,
>
> Irene Sakimoto
> RSO
>
>
>
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> Irene Sakimoto
> Radiation Safety Officer
> University of Hawaii
> Environmental Health and Safety Office
> 2040 East-West Road
> Honolulu, HI  96822
> phone: 808-956-6475
> fax: 808-956-3205
> email: isakimot@hawaii.edu
>
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