[tinwhiskers] REACH SVHC list grows again - what about urethane polymers?
- From: "Fritz, Dennis D." <DENNIS.D.FRITZ@xxxxxxxx>
- To: <tinwhiskers@xxxxxxxxxxxxx>, "John Burke" <john@xxxxxxxxxxx>
- Date: Tue, 19 Jan 2010 15:08:20 -0500
All,
I remain very concerned because dinitro toluene is on the SVHC list. This
chemical is the precursor of toluene diisocyanate (TDI). See wikipedia
reference:
http://en.wikipedia.org/wiki/Toluene_diisocyanate
I understand that there will be no dinitrotoluene in the urethane conformal
coatings, urethane paints, urethane elastomers, urethane foams. However, how
will the production of 34% of the world urethanes be affected because they
depend on TDI and hence di-nitrotoluene for exisitance?
Will TDI based urethane intermediates be shut down in the EU? Will everyone
around the world say - it's too much bother to keep making TDI based urethanes
- so we will blindly substitute some other urethane, not based on TDI?
What does the EU ban on one intermediate do to the house of cards of chemicals
derived from this one banned chemical? Where in the world do others keep on
making this key ingredient?
Denny Fritz
________________________________
From: tinwhiskers-bounce@xxxxxxxxxxxxx on behalf of Steve Smith
Sent: Tue 1/19/2010 1:54 PM
To: John Burke
Cc: tinwhiskers@xxxxxxxxxxxxx
Subject: [tinwhiskers] Re: REACH SVHC list grows again
Thanks for the"Heads-up", John
I looked over the "Candidate List of Substances of Very High Concern
for authorisation" list. It's not that bad.
Of these listed, there are still perfectly adequate substitutes for
the ones that matter.
for the 5-tert-butyl-2,4,6-trinitro-m-xylene (musk xylene), there are
other musks that I think smell even better, so this one's no loss.
for the Sodium dichromate, use Potassium dichromate.
for the triethyl arsenate, tripropyl or triisobutyl arsenate should
work just as well, perhaps better.
for the 2,4-Dinitrotoluene (DNT), I find the 2,4,6 trinitrotoluene
(TNT) actually works much better, and we changed over long ago.
for the Diisobutyl phthalate, disecbutyl phthalate is adequate as a
substitute.
I think we will be able to manage in spite of this.
Steve Smith
JB>
JB> FYI
JB> John Burke
JB> (408) 515 4992
JB> -----Original Message-----
JB> From: SMART Group smart-e-link
JB> [mailto:SMART-E-LINK@xxxxxxxxxxxxxxxxxxxx] On
JB> Behalf Of Nigel Burtt
JB> Sent: Tuesday, January 19, 2010 2:26 AM
JB> To: SMART-E-LINK@xxxxxxxxxxxxxxxxxxxx
JB> Subject: [SMART] REACH SVHC list grows again
JB> 14 more substances have now been officially added to the candidate list by
JB> ECHA as of 13 Jan 2010
JB> < http://tinyurl.com/yjw3joc >
JB> One substance on the original provisional list, acrylamide, appears to have
JB> been given a temporary stay of execution
JB> The full list of SVHC candidate substances can be found at:
JB> < http://tinyurl.com/ykxg67s >
JB> Nigel Burtt
JB> www.nigelburtt.co.uk
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--
Best regards,
Steve mailto:steve@xxxxxxxxxxxxxxxxxxxxxx
www.consultingscientist.us
http://www.pickensplan.com/
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- » [tinwhiskers] REACH SVHC list grows again - what about urethane polymers? - Fritz, Dennis D.
