3 ms·
Our chem lab in high school (in the 80s) had a CO₂ tank attached to a metal cylinder similar to the 3D printed one shown here. You just hooked it up and turned
by wrs 3y ago
Our chem lab in high school (in the 80s) had a CO₂ tank attached to a metal cylinder similar to the 3D printed one shown here. You just hooked it up and turned on the valve to create a puck of dry ice. So if you need it frequently and have trouble finding it for sale, maybe look for the modern equivalent.
(It being high school, about 5% of the dry ice created was used for legitimate chemistry purposes.)
- RC_ITR 3y agoOne of my craziest learnings as a non-Chemist taking my basic college chem was that liquid nitrogen is usually much cheaper than milk on a volume basis. It makes sense ofc - nitrogen is our most abundant gas after all, but it still really blew my mind for something that seemed so exotic.
- bluGill 3y agoIt probably had a vortex tube in there. I've seen them for sale, but never really had a need for enough dry ice to ask if it was worth buying. https://en.wikipedia.org/wiki/Vortex_tube https://en.wikipedia.org/wiki/Vortex_tube