r/labrats • u/feedmahfish • 11h ago
Need help extracting a cylinder from a 1-L graduated cylinder.
I am one of two lab gremlins at a community college. My colleague sent me a whimsical note this morning of a project he left in my prep lab. Apparently, a student in one of the class labs had attempted to measure the volume of a water bottle with the graduated cylinder in a rather unique way. Which description of his did not prepare me for what reality I was walking into.
The water bottle is essentially near the bottom of the graduated cylinder and is air-tightly fit, meaning the student clearly shoved it as hard as they could into the cylinder. Not sure where the instructor was during their massive endeavor to measure the bottle's volume, but nevertheless the instructor left it for us to discover.
So interestingly, I have a cylinder, stuck in a cylinder, and in the interest of not going through requisitions, it's actually imperative the cylinder remains unharmed.
Suggestions?
Edit 2: SOLUTION FOUND. I explain below for posterity.
I took the common suggestion of heating the cylinder and grabbed a scalpel and a bunson burner. I then super heated the scalpel and proceeded to melt through the base of the bottle while slowly slicing through, reheating a bunch of times. I highly recommend doing this in a fume hood because melted plastic smoke..... don't breathe this. Anyway, once I got the base of the bottle sliced off, I then tried crushing it a bit with forceps to see if I can get a grip and pull it out. That didn't work. So I proceeded to drop the cylinder from a great height a couple times from the nearest stairwell, and it dislodged out after the third loud drop.
Happy to say, my graduated cylinder remains unharmed. The other cylinder.............not so much. Thanks for the suggestions all and joining me for this Tuesday morning random problem.
Edit 1: Attempted solutions:
- I might need to go searching for stabbier stabby things because right now our stabby things are either too short, too blunt, or making the situation worse (the bottle went down a 100mL into the tube).
- I tried using a couple spatulas and a pair of bigboy forceps. I got the spatulas to slip around then base of the bottle, but I couldn't get the forceps to get a grip without slipping. I will try this again after putting it in a bath and maybe adding some lubricant to the cylinders.
- I tried warming up the cylinder and taking one suggestion of swinging it like Barry Bonds, but my hands were apparently still too wet and my graduated cylinder went flying out of my hands. And unfortunately it didn't budge the bottle. I'll try Indiana Jones-ing it in the courtyard here and see if physics can help me.
Final Edit: For the future souls wandering into this thread with similar problems, I hope you are literally the only other person this happens to because any more frequency of occurrence of this will start making me sad for whatever society has evolved around you. That said, hopefully the suggestions by many smart people in this thread can help you out of this jam.