Dupont will see that this never sees the light of day. Just like how we don't use butane/propane/CO2 as refrigerants which are just as safe as most of the flourocarbons but have the downside of being too cheap to make any money off of.
Having looked into it more, it appears it is on a country by country basis. And for some uses, flammable refrigerants are not allowed, which further complicates things.
Most of the FC's are highly toxic when exposed to fire.
R-1234yf is not only (slightly) flammable but also releases hydrogen fluoride and carbonyl fluoride when exposed to fire, but this is what is in almost all new cars.
I've run a propane/butane mix in an R12 car before and the fact that it was flammable didn't bother me a bit. The 14 gallons of gas would worry me more than 12oz of propane going up.
> Kinda how we don't use toxic ammonia as a refrigerant.
Ammonia is definitely still used as a refrigerant, just not in consumer equipment. It’s commonly used for ice rink chillers, at least in the US and Canada. Not sure about Europe.
