Dear Levent, A mono ester (such as most fatty-acid methyl esters used for biodiesel) have just one ester group (-COO-) somewhere close to the end of a largish molecule some 16 or 18 carbon atoms long. This 'chain' can be terminated by any aliphatic group such as methyl-, ethyl-, butyl-etc.
A di ester has two ester linkages usually at near each end of that long chain of carbon atoms. So the chain can be terminated by two aliphatic groups to make a di-ester. You can see that such a molecule would have similar properties to conventional "biodiesel" except that it carries more oxygen with it. One consequence is that you would probably get fewer kilometres to the litre. Another is that it would probably be cleaner burning (depending a bit on what else is attached to that carbon chain). Regards Michael Allen On Thu, 26 Jun 2003 08:48:56 +0300, Levent Yüceer <[EMAIL PROTECTED]> wrote: > Hi all, > > Can anyone give more information on diester oil? I am confused about the > chemical structure. Surely it is not diglyceride, is it? Regards to all. > > levent yuceer > > > [Non-text portions of this message have been removed] > > > > > Biofuels at Journey to Forever > http://journeytoforever.org/biofuel.html > Biofuel at WebConX > http://webconx.green-trust.org/2000/biofuel/biofuel.htm > List messages are archived at the Info-Archive at NNYTech: > http://archive.nnytech.net/ > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > > > > -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/ ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get A Free Psychic Reading! Your Online Answer To Life's Important Questions. http://us.click.yahoo.com/Lj3uPC/Me7FAA/ySSFAA/9bTolB/TM ---------------------------------------------------------------------~-> Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://webconx.green-trust.org/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ To unsubscribe from this group, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
