powder addition funnel? any idea??

[TotalSynthesis]

Hi together,

does anybody know if something like a powder addition funnel does exist? I've never seen it.
Or any good idea how to construct one?

I#d like to add pellets of dry ice to a going reaction which is too nasty to open the reaction vessel for the addition. And i also cant give it through the condensor

 

[G.Patton]

I mean conventional funnel with a wide neck in my descriptions to syntheses

 

[TotalSynthesis]

thank you Patton!

But still, this is not a closed system.
I still have to remove the plug from the second neck and switch it with this one and then the reverse procedure again.

well, i guess i need to improvise and build something myself

 

[G.Patton]

Yes, you can do it quite fast. If there is no vacuum, it shouldn't be a problem.Because another option is this funnel. But it isn't appropriate for dry CO2 pellets unfortunately. You can cold your reaction externally.