this post was submitted on 19 Jun 2025
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Also co2 is easier because you can fill a pit with it, nitrogen will just float about and disperse.
It’s just heavier??
It tends to be heavier than air, it will therefore accumulate in low places.
As far as I’m aware NO~2~ will fill a pit. In the industry I work in NO~2~ leaks are serious threat because the engines that are worked on are in, what is essentially, a cage that you walk down into. I’ve not experienced it myself but heard from someone who experienced it firsthand as you just start feeling sleepy. I know now that it’s because our bodies are sensitive to asphyxiation from CO~2~ but not NO~2~, so as it displaces the oxygen in our lungs you just start getting woozy and tired.
All that being said; I am not an expert. Half this is information from diesel mechanics who work with it and the other half is from random science videos. So take it with a grain of salt.