Thread: CO2 inflators
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Old 07-28-15 | 03:56 PM
  #62  
hayden52
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Originally Posted by ItsJustMe
Wait, air is 70% nitrogen. Are you saying that CO2 molecules are smaller than nitrogen atoms and therefore leak out faster? That sound HIGHLY dubious to me. In fact it sounds completely implausible. If that's not the reason I'd love to hear the mechanism behind CO2 being leakier than nitrogen.
The actual reason CO2 leaks out faster than air is that the CO2 is soluble in butyl rubber. The CO2 dissolves its way through the tube. Read details here.
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