Brainonska511
Lifer
- Dec 10, 2005
- 24,084
- 6,897
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Do you guys know how much helium car lots waste? Each large dealership runs through 3-4 cylinders per week for all those balloons you see on the lots. I think that kind of use should be prohibited.
To be fair, they are also not using ultra-high purity helium. For cryogenic uses, like magnets, you're generally using > 99% purity. And scientific applications that use helium gas, such as mass spec, also use high-purity cylinders.
However, I do cringe a little when I see helium wasted on balloons. Every 4 months, we buy 100L of liquid helium to refill our magnet's dewar (liquid helium runs ~$10/L for us, but I've heard costs double or triple that at times from other parts of the country). For a nearby facility, they go through the stuff much faster, as they have 9 high field magnets, 6 or 7 being older designs that just drink the stuff. I think they spend over $200k/year on cryogens.