For decades, R12 (dichlorodifluoromethane, or Freon-12) was the undisputed king of refrigerants. It powered everything from automotive AC systems in your grandfather’s Cadillac to grocery store freezers and domestic refrigerators. However, following the Montreal Protocol, R12 production was phased out globally due to its high Ozone Depletion Potential (ODP). While new systems no longer use R12, millions of legacy systems are still in operation, relying on reclaimed, recycled, or carefully managed stocks of this refrigerant.
The is more than just a graph; it is a key to understanding fundamental thermodynamics without relying on automated software. It teaches you how pressure, temperature, enthalpy, and entropy interact visually. R12 Refrigerant Ph Chart Pdf
After digging through outdated forums and broken links, here are the (as of today): While new systems no longer use R12, millions
R12 refrigerant is a colorless, odorless gas with a boiling point of -29.8°C (-21.6°F) at atmospheric pressure. It is a chlorofluorocarbon (CFC) that was widely used as a refrigerant in the past due to its excellent thermodynamic properties, such as high latent heat of vaporization and good heat transfer characteristics. After digging through outdated forums and broken links,