Sciencemadness Discussion Board

What's this glassware?

Dr. Who - 12-4-2021 at 20:25

This piece of glassware recently showed up on a used site in my area for $20 CAD. Any idea what the heck it is and if it's worth it?

Screen Shot 2021-04-12 at 9.22.43 PM.png - 2.2MB

draculic acid69 - 12-4-2021 at 20:36

Is it a weird sep funnel? And what is the tape looking stuff all over it?

Texium - 12-4-2021 at 20:39

Looks to be a vessel for storing/dispensing something gaseous. The tape wrapped around it indicates that it’s meant to be put under vacuum, and the stopcock type is also one that’s meant to be used under vacuum, because it requires evacuation in order to make a good seal. If the vessel was pressurized, the stopcock could pop out. See here: http://www.ilpi.com/glassblowing/glasscomponents.html

Is it worth it? It’s probably not the most useful thing for an amateur, but it’s far more expensive to buy one new. Heck, that stopcock alone is worth $20.

Panache - 18-4-2021 at 17:23

Quote: Originally posted by Texium (zts16)  
Looks to be a vessel for storing/dispensing something gaseous. The tape wrapped around it indicates that it’s meant to be put under vacuum, and the stopcock type is also one that’s meant to be used under vacuum, because it requires evacuation in order to make a good seal. If the vessel was pressurized, the stopcock could pop out. See here: http://www.ilpi.com/glassblowing/glasscomponents.html

Is it worth it? It’s probably not the most useful thing for an amateur, but it’s far more expensive to buy one new. Heck, that stopcock alone is worth $20.


That’s a great resource...not overly dense nor light....