I’m not sure about the solubility of H, but I would think He probably wouldn’t be too soluble in rubber. I’ve got a reference at work I could check on Monday…
I don’t know about H, but I can tell you for certain my kid’s HE party balloons deflate a lot faster than the regular air ones.
I’m not sure about the solubility of H, but I would think He probably wouldn’t be too soluble in rubber. I’ve got a reference at work I could check on Monday…
I don’t know about H, but I can tell you for certain my kid’s HE party balloons deflate a lot faster than the regular air ones.
True dat…I have a feeling that the H molecules have a pretty good affinity to the latex…
We use Helium for leak detection in my testing lab.
Helium is so small it will even leak through metals. We check the leak rate through Aluminum parts all of the time.
I don’t know how fast it would leak through rubber but it seems like an expensive way to reduce weight.
jaretj
We use Helium for leak detection in my testing lab.
Helium is so small it will even leak through metals. We check the leak rate through Aluminum parts all of the time.
I don’t know how fast it would leak through rubber but it seems like an expensive way to reduce weight.
jaretj
Uh oh, we may have a metrologist in our midst…
Hopefully you aren’t getting a significant leak rate through aluminum parts. I’m in the space biz where leak rates are of prime concern (the need to replenish air on-orbit). Most of the leakage we encounter is through things like seals. And we likewise use helium (ideally) for leak testing.
Didn’t Mythbusters fill a football with helium to see if it would go farther when kicked? If I recall correctly it didn’t make any difference. Myth busted?
Always do Burny…that’s what the Diet Coke an Skoal is for first thing in the morning. Guaranteed a proud evacuation. Sometimes I get 2…
Thanks to all for the scientific responses. I am considering this case officially closed. In a couple hours, I will be in the lubricated frame of mind to offer my next suggestion.
Actually I work for a tier-1 auto supplier. I’m one of the guys that fixes the 1-of-a-kind testing machinery.
When we are looking for leaks it’s normally though seals but we can detect it straight though Aluminum. It takes a while for it to seep through but it really does. When a plant changes a casting process we get a flood of those tests.
jaretj
Incidentally, I use neon.