Fwd: ORGLIST:Freon destruction

Date view Thread view Subject view Author view Attachment view

From: Jacob Zabicky (zabicky$##$bgumail.bgu.ac.il)
Date: Wed Nov 12 2003 - 23:52:07 EST


Begin forwarded message:

> From: Jacob Zabicky <zabicky$##$bgumail.bgu.ac.il>
> Date: Mon Nov 10, 2003 21:31:00 Asia/Jerusalem
> To: adhesivedoc$##$earthlink.net
> Subject: Re: ORGLIST:Freon destruction
>
> Dear Paul,
>
> IMO it's worthwhile investigating to what extent does the metabolism
> of freons go in the soil. If the halogens ultimately become HX acids
> they will be fixed by the soil as some mineral halide. Even if the
> halide is soluble, it may ultimately be trapped as an insoluble one,
> such as CaF2, AlF3, CaSiF4,... The chlorides and bromides are less
> problematic. However, you have a point if the metabolism doesn't go
> that far, for example, if methyl halides are released. A living
> example of that could be the large amounts of methyl bromide naturally
> released to the atmosphere from the sea, as a result of bacterial
> metabolism of bromide ions. But then, the stratosphere copes with
> that, and the seas are enormous. An exciting research project!
>
> All the best,
>
> Jacob
>
> On Sunday, Nov 9, 2003, at 12:08 Asia/Jerusalem, Paul Krebaum wrote:
>
>>
>> for:
>> mailto:mfachrem$##$cyf-kr.edu.pl?Subject=Re:%20ORGLIST:%20%20freon
>>  
>> I found David Naugler's  reply to your question to be most unsettling.
>> Little if any of the Freon will be consumed by soil microbes.  Most
>> will eventually
>> wind up in the Earth's stratosphere, helping to destroy our
>> protective ozone layer.
>>  
>> Since Freons are no longer produced there is quite a market for
>> reclaimed material
>> to fulfil "indispensible" needs.  The market value of some of these
>> Freons is over
>> $200/Kg.  If you have any appreciable quantity, contact a recycler of
>> these gasses
>> and they will buy what you have.  They also have portable equipment
>> which can drain
>> these freons from old refrigeration equipment, preventing release
>> into the environment
>> when the units are dismantled or crushed at the junkyard.
>>  
>> --- Paul Krebaum
>>
>>
>>
>>
> ***************************************************
> Prof. Jacob Zabicky
> Institutes for Applied Research
> Ben-Gurion University of the Negev
> P. O. Box 653, Beer-Sheva, 84105, Israel
>
> Phone: +972-8-6461271; Fax: +972-8-6472969
> zabicky$##$bgumail.bgu.ac.il
> http://www.bgu.ac.il/IAR/Zabicky.htm
> -------------------------------------------------
> Private:
> P. O. Box 12366, Beer-Sheva, 84863, Israel
> Phone: +972-8-6496792
>
>
***************************************************
Prof. Jacob Zabicky
Institutes for Applied Research
Ben-Gurion University of the Negev
P. O. Box 653, Beer-Sheva, 84105, Israel

Phone: +972-8-6461271; Fax: +972-8-6472969
zabicky$##$bgumail.bgu.ac.il
http://www.bgu.ac.il/IAR/Zabicky.htm
-------------------------------------------------
Private:
P. O. Box 12366, Beer-Sheva, 84863, Israel
Phone: +972-8-6496792

_______________________________________________
ORGLIST - Organic Chemistry Mailing List
Website / Archive / FAQ: http://www.orglist.net
To post a message (TO EVERYBODY) send to everybody$##$orglist.net
To unsubscribe, send to everybody-request$##$orglist.net the message: unsubscribe your_orglist_password your_address
List coordinator: Joao Aires de Sousa (coordinator$##$orglist.net)


Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.4 : Thu Nov 13 2003 - 11:47:01 EST