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Chemistry Forums for Students => Organic Chemistry Forum => Organic Chemistry Forum for Graduate Students and Professionals => Topic started by: karl26 on February 26, 2008, 08:20:54 AM

Title: what kind of trap can I use to avoid ethyl acrylate smell ?
Post by: karl26 on February 26, 2008, 08:20:54 AM

Hi everybody,

I am doing a reaction involving a distillation of excess ethyl acrylate ( big scale reaction > 100 kg)

We are having problems with the smell of ethyl acrylate vapours (small quantities which comes out of the pump) even if we use a 10% NaOH scrubber


Does anyone know a more efficient way to trap ethyl acrylate vapours ?


thanks in advance

 ;)

Title: Re: what kind of trap can I use to avoid ethyl acrylate smell ?
Post by: ARGOS++ on February 26, 2008, 08:36:41 AM

Dear Karl26;

For “Vacuum Pumps” you should always use a “Cryogenic Trap” (even for large scaled).
In your case maybe you have to use “Liquid Nitrogen”.
But I believe: first you will have to clean your pump to be successful.

About “Cryotraps” you can read on:    "CryoPump (http://en.wikipedia.org/wiki/Cryopump)”
 

Good Luck!
                    ARGOS⁺⁺

Title: Re: what kind of trap can I use to avoid ethyl acrylate smell ?
Post by: PhosMAN30 on April 24, 2008, 12:53:27 PM

Our group uses a rotovap specific for these occasions.  We keep it in the hood.  We also use a Welch model 2027 to remove DMF, DMSO, etc...

Title: Re: what kind of trap can I use to avoid ethyl acrylate smell ?
Post by: Dlabs on August 17, 2008, 10:15:33 AM

We wash all of our glassware that was in contact with acrylates with a domestic hypochlorite solution (bleach). This probably oxidises the acrylate into something that can then be washed normally