Alabama is seeking to become the first state to execute a prisoner by making him breathe pure nitrogen

Alabama is seeking to become the first state to execute a prisoner by making him breathe pure nitrogen.

The Alabama attorney general’s office on Friday asked the state Supreme Court to set an execution date for death row inmate Kenneth Eugene Smith, 58. The court filing indicated Alabama plans to put him to death by nitrogen hypoxia, an execution method that is authorized in three states but has never been used.

Nitrogen hypoxia is caused by forcing the inmate to breathe only nitrogen, depriving them of oxygen and causing them to die. Nitrogen makes up 78% of the air inhaled by humans and is harmless when inhaled with oxygen. While proponents of the new method have theorized it would be painless, opponents have likened it to human experimentation.

          • livus
            1•10 months ago

            I was beginning to wonder if breathing pure nitrogen was some kind of party trick or rite of passage for science geeks.

        • @CarterH739
          3•10 months ago

          I have, sort of. I’ve worked HazMat most of my life. One of the jobs I had years ago involved neutralizing a large pit of acid. It was just a huge pit in the ground with a roof over it. From the outside, it just looked like someone had pulled the roof off of a house and set on the ground. There were only two openings, one at either end, so it was completely enclosed. The method here was to send the two youngest (and therefore invincible) guys into the pit with acid suits and full faced respirators, with buckets of soda ash, we walk around in it and stirred it up while we sprinkled the ash around. Safety standards back then were not what they are today. Anyway, the people in charge realized that there would be a reaction with gases betting released, hence the respirators, but no one considered the possibility that the gases might be heavier than oxygen. Which they were. We didn’t know what kind of acid it was but this was an old fertilizer plant, so probably nitric. Which means the gas was most likely nitrogen. Whatever the case, we got into trouble when we realized that we were both getting rather lightheaded. We tried to leave, but the only way out was up a ladder and by the time we got to it the other guy, we’ll call him Rick, could only get about half way up before he just couldn’t move anymore, which left me leaning on the ladder at the bottom, completely unable to help, as I was in the same state. Luckily, our foreman was a lunatic and he jumped in and pulled us out. You are absolutely not supposed to do that because you are just as likely to end up in the same trouble as the guys you’re trying to save.

          The experience with the gas was not unpleasant. I should have been terrified, but was mostly just mildly concerned. The only real effects I remember feeling are the lightheadedness and being really sleepy.

    • @FlowVoid@midwest.social
      25•10 months ago

      Nitrogen hypoxia is a risk wherever liquid nitrogen is used. If too much boils too fast, it will displace the oxygen in the room. People in the room won’t even realize what happened until they pass out and die shortly thereafter.

      There are reports of people rushing in to rescue those who passed out, and suddenly passing out themselves and needing to be rescued as well. That’s how insidious it is. And that’s why MRI scanners (which use liquid nitrogen) have oxygen sensors in the room. You can’t trust your own body to tell you that all the oxygen is gone.

      • mememuseum
        0•10 months ago

        MRI machines are cooled by liquid helium. Nitrogen is not cold enough. I’d imagine as a noble gas it has a similar effect though.

        • @becausechemistry@lemm.ee
          6•10 months ago

          They are cooled by liquid helium, but also have a liquid nitrogen outer dewar as well with a vacuum insulator in between. The N2 takes the brunt of the ambient heat so you don’t have to top off the (much more expensive) helium as often.

    • angrystego
      5•10 months ago

      Can you please share more of your experience? What was the occasion and the set-up? What was it like?

    • @oatscoop@midwest.social
      1•10 months ago

      I’m willing to bet what you inhaled was carbon dioxide – that gives an instant feeling of suffocation. Which ironically makes it one of the safer asphyxiant gasses, as it’s heavier than air and you can detect it’s presence instantly. Inert (“noble”) gasses like helium, argon, and nitrogen don’t have that effect.

      CO2 is also cheap, readily available, non-toxic, and doesn’t cause physical damage. This makes CO2 asphyxiation somewhat popular for “stunning” or killing in places like slaughterhouses, labs working with smaller animals, or “feeder” animals for reptiles.