Firstly, halon 1211 is MILES better than the named replacements that you mentioned. Just look at the fire suppression numbers.
Second, this is Argentina, not the epa swamp that is the new America, or even the socialist states of Europe.
The rest of the world uses halon 1211 and be damned to the miniscule ozone depletion compared to a roaring fire releasing God knows what.
Also, you can buy halon w/1211 online, just nowhere will recharge it for you.
I was providing my professional insight into current trends in data center fire suppression. That’s a very specific knowledge set. I can’t debate you on the finery of fire suppression chemicals, I’m only commenting because Iron Mountain is a data retention vendor with whom I’ve done business.
Halon was one of the chemicals targeted for regulation by the Montreal Protocol in the 80s. While you may be able to buy halon in the US, it’s not used commercially, and you’d likely be fined for dispersal if the EPA ever found out. Besides, freon is still available for home and business A/C and auto if you know where to look, but that doesn’t make it the standard.