I'm performing an experiment and a need to be able to create about a 500 psi pressure environment. I have a container (iron vessel) that I know is capable of holding such pressure, but I don't know how to create it.
Most air pumps don't go higher than 100-150 psi. I considered a carbon dioxide tank for paintballing, but they only go up to 300 psi. Any ideas?
2007-02-16 10:20:06 · 3 answers · asked by jsprplc2006 4 in Science & Mathematics ➔ Physics
By the way, I can use any gas to create this pressure. It just needs to be reasonably stable, and it needs to be able to exist in gaseous form at 500 psi and room temperature. (Which I believe causes carbon dioxide to liquify anyway)
2007-02-16 10:21:43 · update #1
Here's an idea: Get some liquid nitrogen or dry ice. Be careful, but if you do it in the right quantity, and are patient, you can get your desired pressure. It seems like it should work fine. Liquid nitrogen, if you can get it, should work pretty darn well.
Check on the dry ice. If CO2 won't work at 500 psi at room temperature, try to find some liquid nitrogen, but if it does, it is ridiculously easy to get, if you are over 18, or can get someone over 18 to go to Baskin-Robbins for you.
2007-02-16 10:58:30 · answer #1 · answered by a r 3 · 0⤊ 0⤋
Do you have access to a lab/industrial gas supplier, either through your school or place of employment? Gas cylinders of inerts like helium, nitrogen, or argon typically have 1500-2000 psi tank pressure, and only cost about $25 (if you get low-grade gas). You'll need to purchase the connectors and regulators etcetera.
2007-02-16 18:27:56 · answer #2 · answered by MissA 7 · 2⤊ 0⤋
fill it with diet coke, and drop in a menthos, then close it, good luck.
2007-02-16 18:31:27 · answer #3 · answered by mrzwink 7 · 0⤊ 0⤋