A refrigerant is a substance or mixture, usually a fluid, used in a heat pump and refrigeration cycle. In most cycles it undergoes phase transitions from a liquid to a gas and back again. Many working fluids have been used for such purposes.
All Gas Refrigerant Cylinder Color Code
Comment
You’re missing an important refrigerant type: FREON MO99 (438a) made by Dupont. It’s actually quite popular as a cheaper R22-equivalent replacement. Your list has so many types, I thought it was weird that you were missing that one.