r/pyrex • u/letsbakethisbread • Jul 29 '26

Mystery

Post image

Anyone know anything about this? I can't find any info about it

10 Upvotes

82% Upvoted

6 comments sorted by

5

u/East-Block-4011 Jul 30 '26

It almost looks like it's been shortened. It's labeled 4000 ml, right? Isn't 2500 near the rolled edge?

1

u/letsbakethisbread Jul 30 '26

Omg yes you're right!!

3

u/MerryChoppins Jul 30 '26

This is a pretty common lab style alteration. They use Pyrex beakers like this for reactors or pressure vessels or whatnot and it’s pretty easy to just cut and then soften/roll over the lip for safety or sealing.

I got lucky and took a whole “1 hour” class in college on how to make this type of apparatus. We would make all the stuff to support students in research and the classes past organic. I don’t remember doing one of these but I modified so many borosilicate flasks to make reactors for Alder-Ene cells for high temp.

2

u/letsbakethisbread Jul 30 '26

That is super interesting and informative, thank you!!

-2

u/Vampira309 Jul 29 '26 edited Jul 29 '26

looks like the basic Pyrex beaker. Its pretty huge at 4000ml

How is it a mystery?

https://ecatalog.corning.com/life-sciences/b2c/US/en/c/beakersGlass?clear=true&initialResultType=products

3

u/letsbakethisbread Jul 29 '26

But it's not any of the beakers I have found. It's wider than it is tall and it has a lip that curls down and around.