Depends on which type of refrigerator. Some industrial units still use pure ammonia. The CFC refrigerators typically used R12, just like car air conditioners, and likewise switched to R-134a (HFC 134a) when the further production of R-12 was banned.
cfc
CFC gas is used for cooling refrigerator.
Cfc arr used
No. CFC's are a man made gas.
Ozone is depleting. It is depleting due to the CFC's used by the humans.
Methane (CH4) neaon
CFC gas
LPG - Liquid propane gas or other Hydrocarbon derivatives... Soft CFC's, they added hydrogen to the CFC's previously used that were called hard CFC's. By doing this it won't allow the CFC's to travel up to the stratosphere, where it breaks down the ozone. With the added hydrogen will stop it in the troposphere and combine to form compounds such as CO2 + HCl (or HF), therefore not harmful to the ozone. Examples CH2Cl (HCFC-22) or CHCl2-CF2 (HCFC-123)
A fridge itself does not directly produce a greenhouse gas. However, the electricity used to run a fridge can produce greenhouse gases depending on the source of the electricity (e.g., fossil fuels).
Yes. Tetrafluoroethane is a non-CFC gas. CFCs are chlorfluorocarbons which contain both chlorine and fluorine. Tetrafluoroethane does not contain chlorine.
CFC's
Most aerosol cans now use non-CFC propellants and are generally much kinder to the environment. Therefore they are far less damaging to the ozone-layer. Unfortunately HCFC gas used as a replacement for CFC's is potent greenhouse gas.