dann2
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Whats this?
Hi,
I purchased the following item for a few cents in a second hand shop. Wondering what it is?
My guess is that it is a device for getting a small sample of what is coming over out of a boiling flask. Then again if you put this on a boiling
flask it would pop off.
Dann2
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ScienceSquirrel
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That is an addition gizmo for working under anearobic conditions.
The solid is placed in the end and then attached to the three necked flask. The flask is filled with nitrogen and then the gizmo is turned so the
solid falls into the reaction mixture in the flask.
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vulture
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Are you sure about that, it doesn't explain the hole.
It could be a venting valve for a rotary evaporator.
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ScienceSquirrel
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| Quote: | Originally posted by vulture
Are you sure about that, it doesn't explain the hole.
It could be a venting valve for a rotary evaporator. |
It could be.
I just made a wild guess. I have never seen or used anything quite like it.
[Edited on 13-8-2008 by ScienceSquirrel]
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The_Davster
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I can't explain the hole, but I have seen other male GG joints randomly have this hole. There seems to be no purpose to this hole where I have seen
it before, ex on a couple condensors.
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bfesser
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Looks like the stopper to a Thunberg tube.
Example:
http://kimble-kontes.com/html/pg-899250.html
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The_Davster
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Looks like I was wrong about no purpose in this case! I stand corrected!
Why those holes have been on condensers only makes sense if they reused old joints.
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Klute
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Perhaps it's part of an small sublimator? And the hole realy looks likes a venting hole as used in a Rotavap. Maybe it's to vent the sublimator?
EDIT: after looking at that link, indeed the hhole seems to be there to open vacuum or/and inert gas opening.
[Edited on 13-8-2008 by Klute]
\"You can battle with a demon, you can embrace a demon; what the hell can you do with a fucking spiritual computer?\"
-Alice Parr
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