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That's definitely true too, given that the exhaust of most kinds of liquid rocket fuel isn't toxic at all. Hydrolox releases water, and methalox and kerolox re
by CydeWeys 7y ago
That's definitely true too, given that the exhaust of most kinds of liquid rocket fuel isn't toxic at all. Hydrolox releases water, and methalox and kerolox releases water and carbon dioxide. (And that's all of the commonly used liquid fuels.)
Note that rocket engines do not completely combust their fuels, far from it. So a lot of that highly toxic solid fuel in its uncombusted form is still gonna be in the exhaust.
- pfdietz 7y agoThey do not fully combust their fuels because they aren't stoichiometric, typically. But all the fuel components are heated to high temperature, so any energetic (and often not coincidentally toxic) chemicals are reduced to a mixture in close to thermodynamic equilibrium. Hydrazine, for example, gets converted to nitrogen and hydrogen, with some of the hydrogen being oxidized.