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Dichloromethane eats ozone

Posted: Wed Jun 28, 2017 10:46 am
by Peter Apps
Hardly a surprise given its chemistry; ... id=1408396

Is this likely to lead to restrictions on its use in analytical labs ?


Re: Dichloromethane eats ozone

Posted: Thu Jun 29, 2017 12:30 am
by tom jupille
Peter, given how long it took the world to restrict CFCs, I suspect we'll be long-since retired before MeCl2 is restricted. You can still buy R22 Freon today, a couple of decades after its use was discontinued in auto air conditioners.

In any case, analytical sample prep is only a drop in the bucket (okay, bad analogy) compared to the use of MeCl2 in industrial processes.

Re: Dichloromethane eats ozone

Posted: Tue Jul 18, 2017 10:06 pm
by Steve Reimer
I see that its atmospheric concentration is slowly increasing: