Question

Write the properties of R-12.

Hint:

R-12: good for old fridges but banned now due to ozone damage!

Answer 1

R-12, also known as dichloro difluoro methane, is a refrigerant that was widely used in domestic and commercial refrigeration.
Some important properties of R-12 are:
1. Chemical formula: CCl$_2$F$_2$.
2. Colorless and odorless: R-12 is non-flammable and has no significant smell.
3. Stable: It is chemically stable under normal operating conditions.
4. Good thermodynamic properties: It has low boiling point and good heat absorption capacity.
5. Low toxicity: R-12 is generally safe to handle under controlled conditions.
6. Non-corrosive: It does not corrode metals used in refrigeration systems.
7. Environmental concern: R-12 has high ozone depletion potential and is now phased out under international agreements like the Montreal Protocol.
It has been replaced by more environmentally friendly refrigerants.