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

["Gee, Robert Franklin (XRF) " <XRF@ornl.gov>]

One correction to the message I sent on Friday.  The three in the formula
for ClF3 is a subscript and not a superscript.  It was late Friday afternoon
and I inadvertently inserted the ^ symbol.

Robert Gee

> -----Original Message-----
> From:	Gee, Robert Franklin (XRF)  [SMTP:xrf@ornl.gov]
> Sent:	Friday, August 20, 1999 3:50 PM
> To:	Multiple recipients of list
> Subject:	RE: Uranium: ClF3, T.C.E. & P.C.E - French abbreviations
> 
> ClF^3 is chlorine trifluoride and it actually does exist.  It is listed in
> Lewis' Hazardous Chemical Desk Reference and several other hazardous
> material reference texts.  The CAS number is 7790-91-2 and the DOT
> identification number is UN 1749.  It is described as a colorless gas to
> yellow liquid, sweet odor, MP: -83C, bp: 11.8C, density 1.77g/cm3 at 13C.
> It is a powerful oxidizer which reacts violently with oxidizable
> materials.
> It undergoes violent reactions with many other materials.  Some of the
> other
> descriptions I have seen posted are correct in describing its use in the
> gaseous diffusion process.
> 
> Robert Gee
> Lockheed Martin Energy Systems
> 
> > -----Original Message-----
> > From:	Franz Schoenhofer [SMTP:schoenho@via.at]
> > Sent:	Friday, August 20, 1999 1:21 PM
> > To:	Multiple recipients of list
> > Subject:	Re: Uranium: ClF3, T.C.E. & P.C.E - French abbreviations
> > 
> > At 09:11 20.08.1999 -0500, you wrote:
> > >Thank you all who responded to abbreviations question. The TCE and PCE
> > have 
> > >definitely been clarified - regarding the ClF3 it was unclear to me
> > whether 
> > >the "C" was referring to carbon or if it was to be read "Cl" (chlorine)
> > to 
> > >be interpreted as a "tetra" compound (1 chlorine and 3 fluorine atoms) 
> > >centered around a "leftout" carbon.
> > >
> > >Bjorn Cedervall
> > >bcradsafers@hotmail.com
> > >
> > 
> > Carbon is tetravalent, therefore CF3 cannot exist. ClF3 cannot exist
> > either
> > because both Cl and F form negative ions only. Monochlorotrifluorocarbon
> > CClF3 can exist, but I would believe that it is rather inert - maybe I
> am
> > wrong. Sorry, the only help I can give is that it cannot be CF3 and
> ClF3.
> > 
> > Franz
> > 
> > 
> > Franz Schoenhofer
> > Habicherg. 31/7
> > A-1160 Vienna
> > Austria
> > Tel.: +43-1-495 53 08
> > Fax.: same number
> > mobile phone: +43-664-338 0 333
> > e-mail: schoenho@via.at
> > 
> > Office:
> > Hofrat Dr. Franz Schönhofer
> > Federal Institute for Food Control and Research
> > Department of Radiochemistry
> > Kinderspitalg. 15
> > A-1095 Vienna
> > Austria
> > Tel.: +43-1-40 490 27820
> > e-mail: schoenhofer@baluf.via.at
> > ************************************************************************
> > The RADSAFE Frequently Asked Questions list, archives and subscription
> > information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
> ************************************************************************
> The RADSAFE Frequently Asked Questions list, archives and subscription
> information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html