My question is this - are there any reasons why hydrazine may jump out as a poor solvent for a complex system such as life?
I am working on a worldbuilding sci-fi project and I was looking through a number of molecules that potentially could replace or supplement water on another planet.
The general background is that I'm trying to sketch up some interesting exotic planets for a sort of encyclopedia of known worlds. For one of the less earthlike worlds, I was thinking of using hydrazine (N₂H₄) as the dominant thalassogen (or, a substance capable of forming a planetary ocean).
In the context of the universe, this type of a planet is exceedingly rare, as water is the most common thalassogen on terrestrial worlds (save for maybe planets which are exceedingly close to their stars and have various molten materials).
It's stats seem pretty reasonable for thalassogen including:
- Hydrazine's liquid range of 112°C/202°F (2°C-114°C/35°F-237°F)
- Hydrazine hydrate's liquid range is even broader (-52°C-120°C/-61.6°F-248°F)
- A comparible density to that of water, being slightly more dense at 1.021 g/cm³, and hydrazine hydrate having a slightly higher density still at 1.032 g/cm³.
- Hydrazine hydrate seems to be extremely beneficial for keeping a wide liquid range which may allow for life to evolve into colder or potentially hotter environments.
- Hydrazine is comprised of, N₂H₄ - both constituents, Nitrogen and Hydrogen are exceedingly common with Hydrogen being the most common of all elements and Nitrogen being fairly "easy" for stellar nucleosynthesis to generate.
- Hydrazine is also polar and thus allows for hydrogen bonding.
Is there anything here that's a deal breaker in your opinion? I'd love to get some more thought on it.
Thank you in advance.