RE: Uranium: ClF3, T.C.E. & P.C.E - French abbreviations

[Craig Reed <CReed@novoste.com>]

Bjorn,

TCE Trichloroethylene is a metal cleaning solvent that was used at the
UF6 enrichment facilities (and in many, many industries).  It's a
suspect carcinogen and due to historic waste handling practices is
monitored as an environmental contaminant.

Kyle is correct on the ClF3: inleakage of moist air and other
decomposition forces (heat, intense alpha irradiation, etc.) convert
gaseous UF6 to undesrieable solid Uranium compounds, UO2F2, UF5, etc.;
application of gaseous ClF3 reverses (vigorously) those reactions.

Craig Reed 
creed@novoste.com

-----Original Message-----
From: Kyle Kleinhans [mailto:kkleinhans@fwenc.com]
Sent: Friday, August 20, 1999 8:22 AM
To: Multiple recipients of list
Subject: Re: Uranium: ClF3, T.C.E. & P.C.E - French abbreviations




Bjorn,

If I recall correctly, ClF(subscript: 3) is carbon trifluoride, which
has been
used to remove deposits of uranium from process (enrichment) equipment.
I think
it works by reacting with the uranium deposit converting the uranium to
UF
(subscript: 6), then the UF(subscript: 6) can be recovered.

Kyle Kleinhans
kkleinhans@fwenc.com




"Bjorn Cedervall" <bcradsafers@hotmail.com> on 08/20/99 03:57:00 AM

Please respond to radsafe@romulus.ehs.uiuc.edu

To:   Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
cc:    (bcc: Kyle Kleinhans/OakRidge/FWENC)

Subject:  Uranium: ClF3, T.C.E. & P.C.E - French abbreviations



Radsafers,

I just encountered a few French abbreviations related to the production
(enrichment) of uranium. These are ClF3, T.C.E. and P.C.E. - supposed to
be
some chemical substances (used or produced in the order of tons). Can
anyone
help me with translation into standard chemical jargong? The first one
resembles a freon but in that case a carbon must be missing.

Any help will be greatly appreciated,

Bjorn Cedervall,
bcradsafers@hotmail.com
PS. I want to take the opportunity to thank those of you who have
provided
me with valuable responses to previous questions that I brought up.


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