Hi Camille, OrganicChemistry-UnChallenged IPC LF Listservers,

This is from a note by Camille, and I was wondering about a small point
that probably I should know.

<====
<I'll admit that when I first started reading about the RoHS and
other "green" technology issues a couple of years ago, I would sometimes
call something "halogen-free" rather than type out "does not contain the
PBBs or PBDE's, specifically penta-BDE and octa-BDE [because deca-BDE is
still okay, so even saying all poly-BDEs isn't technically correct] that
are banned by RoHS".  The discussion early last year showed me that when I
was asking "halogens", I was using a far more generic term than I realized.>
<=====

penta is  06  I believe
octa  is  08
deca  is  10

If the above is correct what makes deca so much more stable.

Yours in Engineering, Dave
YiEngr, MA/NY DDave

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