August 03, 2020, 10:48:32 AM
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Topic: Anhydride Dialkoxyamine Quench  (Read 1999 times)

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Offline Discarnate

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Anhydride Dialkoxyamine Quench
« on: August 08, 2014, 09:51:56 AM »
I'm looking to run an experiment with an acid anhydride and diethanolamine. I understand that this will produce an exotherm and wanted to know if there is anything that I can drop in to quench the reaction if it gets out of hand! Not too bothered if I can't recover the RM's...

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Offline baum0372

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Re: Anhydride Dialkoxyamine Quench
« Reply #1 on: August 08, 2014, 10:36:39 AM »
Conceptually, anything that will quench the amine should slow/quench the reaction.  I'm not sure if adding a salt that can complex ethanolamine will do the trick?  Are you looking to stop the reaction just in case it gets too hot or for some analytical procedure?  If it's just in case, I'd suggest just diluting it in solvent.

Offline Discarnate

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Re: Anhydride Dialkoxyamine Quench
« Reply #2 on: August 08, 2014, 10:47:55 AM »
Just something to kill the reaction, safety first! Thanks

Offline discodermolide

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Re: Anhydride Dialkoxyamine Quench
« Reply #3 on: August 08, 2014, 12:37:56 PM »
Just keep control of the reaction temperature and the addition rate of the diethanolamine and you will be ok. Adjust the rate of addition so that you can maintain a temperature, say 10°C. Make sure it does not get too cold or the reaction may stop, and when you warm it it will suddenly restart.
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Offline Discarnate

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Re: Anhydride Dialkoxyamine Quench
« Reply #4 on: August 11, 2014, 03:50:16 AM »
Thanks, good to know

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