Refrigerant R507

R507 is a non-ozone-depleting, azeotropic hydrofluorocarbon (HFC) blend of R-125 and R-143a (50/50 mix) used primarily for low- and medium-temperature commercial refrigeration. It serves as a popular replacement for R-502 and R-22 due to its similar performance, but it has a high Global Warming Potential (GWP) of 3985, leading to phase-out regulations.