Hi Tiffany,
This is a treasure hunt to sit and drink over my morning coffee! Here it goes:
A Wiki- search to get started:
https://en.wikipedia.org/wiki/Crown_ether
There’s several varieties, so checking each one you have is important. You’ll want to weed out the poisons and corrosives from the ones that are actually reactive (DOT Class 4’s).
I looked up “azacrowns” first thinking they would be the most likely to be reactive. Here’s one example. It’s just corrosive:
http://www.tcichemicals.com/eshop/en/sg/commodity/T1874/
If they are in liquid form they may be in acetonitrile, THF, methanol, cyclohexane, benzene, or toluene; which means you’re back to checking for peroxides:
https://en.wikipedia.org/wiki/18-Crown-6
At the bottom of this Wiki-page you can get to the Sigma Aldrich page and look up the SDS. 18-Crown-6 seems to be nothing, but I would not put it in the trash and freak out everyone down-stream; especially with
the ever-present “no data available” throughout SDS.
I hope this gets you started!
Ellen
From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
On Behalf Of Tiffany Freedman
Sent: Friday, June 29, 2018 2:28 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [DCHAS-L] Questions on Crown Ethers
Good Afternoon All!
I hope everyone has had a good week…maybe enjoying a little cooler temperatures than we have in Charleston SC. I have a question concerning the disposal of crown ethers. This may be too broad of a question, but are there any special considerations
with their disposal? We are trying to rid ourselves of some “legacy” chemicals and I admit that I’m not very familiar with crown ethers. Other ethers can be peroxide-forming and must be handled accordingly. I’m told crown ethers are different, but I would
feel better with some other guidance/advice.
Any insight would be greatly appreciated!
Thanks!
Tiffany
Tiffany CR Freedman
Laboratory Safety Manager
The Citadel-The Military College of SC
Office: 843-953-1067
trush1**At_Symbol_Here**citadel.edu
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