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everforwardtoday at 5:53 PM1 replyview on HN

I don’t think this is true, but it’s not my forte.

Pure ammonia is toxic to animals. At normal outdoor temperatures it also only becomes a liquid at ~100 PSI (it’s like 150 at 80F). The boiling point at STP is like -27F.

I’m doubtful running a power transmission line to these places is harder than maintaining pipes that transport either a toxic gas, or a toxic pressurized liquid.

If you could turn it into ammonium nitrate, that’s a solid at room temp and easier to transport. It’s explosive but insensitive so it shouldn’t without another explosion first. Even if it does, this sounds remote enough that it shouldn’t matter and ammonium nitrate is a no -toxic fertilizer. Wildlife shouldn’t even notice.


Replies

hn_throwaway_99today at 6:07 PM

I didn't realize this previously but straight anhydrous ammonia can be used directly in the field as a fertilizer - specialized trucks just inject it directly into the soil where it dissolves in soil moisture.

Yes, it needs to be stored as a "toxic pressurized liquid" in steel tanks, but we store and use lots of toxic pressurized liquids all the time. Lots of people run all their energy needs off propane tanks, after all.