Carbon Dioxide Removal (CDR)

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CDR is removal of CO2 from the atmosphere - an essential basket of technologies for achieving UN IPCC best outcomes to mitigate climate change. This is a community for discussing advances and issues of CDR.

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Half a pound of this powder can remove as much CO₂ from the air as a tree, scientists say (www.latimes.com)

submitted 1 month ago by Five to c/cdr

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[–] threelonmusketeers@sh.itjust.works 8 points 1 month ago* (last edited 1 month ago) (1 children)

The molecular structure of the powder:

The notable thing seems to not be that it can absorb (and desorb) CO~2~, but that it can undergo hundreds of cycles with little degredation.

[–] Five 3 points 1 month ago (1 children)

I'm not a chemist, but from what I can tell it's created using cesium salt as a precursor or catalyst. This doesn't sound like something punks can safely mix in a bathtub.

[–] threelonmusketeers@sh.itjust.works 3 points 1 month ago (1 children)

I might be a chemist, and I'm not too concerned about the toxicity of the cesium carbonate. I'd be more concerned about the toxicity of the azide and azidirine intermediates. But if some "punks" can pull off a Knovenegal condensation and a Staudinger reaction in a bathtub, I would be quite impressed with their resourcefulness.

[–] Five 2 points 1 month ago

It sounds like extremely toxic organic chemistry. I imagine the waste from the reactions has special disposal requirements. Do you think the powder is hazardous as well?