3 ms·
As long as 20% concentration is sufficient, I've found no difficulty securing local supplies.
by simonh 5y ago
As long as 20% concentration is sufficient, I've found no difficulty securing local supplies.
- masklinn 5y agoI wonder what the flammability limits of hydrogen in low-ox environments is. It's 4 and 75 in air (so hydrogen will readily ignite between 4% an 75% hydrogen in air at 1atm), and it's 4 and 94 in pure oxygen. And the good news is that there is a limiting oxygen concentration, but the bad news is it's 5% (so over 5% oxygen by volume at STP it becomes possible for hydrogen to ignite), but I could not find flammability limits at sub20.