If your home's air conditioning unit is more than 10 years old, there's a good chance it uses R22, commonly known as “Freon.†R22 is an A/C refrigerant — a substance used for cooling in air conditioners— that was once widely used in air conditioning units in homes and businesses alike.
Summary. R-500 is a colorless and odorless CFC refrigerant that was completely banned from production by 1996 under the Montreal Protocol for depleting the ozone. R-500 is used in commercial air conditioning and in some dehumidifier applications. It Is high-pressured and typically stored in yellow containers.
CFC-115 (CHEM004033)
| Record Information |
|---|
| Chemical Formula | C2ClF5 |
| Average Molecular Mass | 154.466 g/mol |
| Monoisotopic Mass | 153.961 g/mol |
| CAS Registry Number | 76-15-3 |
It must have high thermal conductivity to reduce the area of heat transfer in the evaporator and condenser. It should be non-flammable, non-explosive, non-toxic, and non-corrosive. It should not have any bad effects on the stored material or food when any leak develops in the system.
Trichlorofluoromethane is a colorless, odorless gas at normal temperatures and pressures. The chemical formula for Trichlorofluoromethane is CFCL3.
The refrigerant, a chemical compound that changes easily from liquid to a gas. When the refrigerant is pushed into the compressor, it is a low pressure gas.
Properties of a good refrigerants:
- Low boiling Point.
- High Critical Temperature.
- High latent heat of vaporisation.
- Low specific heat of liquid.
- Low specific volume of vapour.
- Non-corrosive to metal.
- Non-flammable.
- Non-explosive.
The environmental concern for CFCs follows from their long atmospheric lifetime (55 years for CFC-11 and 140 years for CFC-12, CCl2F2)9 which limits our ability to reduce their abundance in the atmosphere and associated future ozone loss.
R12 (also known as “Freonâ€) is a CFC (chlorofluorocarbon), specifically dichlorodifluoromethane, and R134a is a hydrofluorocarbon (HFC), meaning both have different chemical makeups. Additionally, CFCs are known to be damaging to the ozone, which is why R12 is no longer in production.
In addition to fluorine and carbon, Freons often contain hydrogen, chlorine, or bromine. Thus, Freons are types of chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and related compounds. The name Freon is a trademark registered by E.I.
DOT#: UN 1030 ERG Guide #: 115 Hazard Class: 2.1 (Flammable gas) FLAMMABLE GAS. POISONOUS GASES ARE PRODUCED IN FIRE, including Hydrogen Fluoride and Carbonyl Fluoride. CONTAINERS MAY EXPLODE IN FIRE. Use water spray to keep fire-exposed containers cool.
It is a non-flammable gas with a sweetish, chloroform-like odor with the critical point occurring at 145.6 °C and 3.26 MPa. When pressurized or cooled, it is a colorless liquid.
Summary. R-11 is a colorless and odorless CFC refrigerant that was completely banned from production by 1996 under the Montreal Protocol for depleting the ozone. It is a low-pressure refrigerant that was commonly used in centrifugal chillers and before the 1970's it was used as a propellant for aerosols.
There are actually three different types, and using the wrong one can damage your air conditioner because they're not interchangeable. With that in mind, it's important to know as much as possible about these refrigerants.
Common CFC refrigerants are R-11, R-12, R-13, R-113, R-114, and R-115. A blend that contains a CFC and any other product is still considered a CFC refrigerant. HCFC Refrigerant: HCFC refers to the chemical composition of the refrigerant. Common HFC refrigerants are R-32, R- 125, R134a, R-143a, and R-152a.
R23 is a HFC, used as a replacement for R13 and R503 in very low temperature refrigeration. It is also used as a clean fire suppressant as a replacement for Halon 1301. R23 now has limited use due to its high Global Warming Potential (GWP).
Alternatives to CFCs for new commercial refrigeration equipment include HCFCs (including HCFC mixtures) and HFCs and HFC mixtures. Retrofit of existing equipment is possible by using both HCFCs and HFCs, in con- junction with reduced charges and more efficient compressors.
Product Category： refrigerant. Product Details： As a low temperature refrigerant; in electronics microfabrication alone or in combination with oxygen as a plasma etchant for silicon, silicon dioxide, and silicon nitride; in high-voltage equipment production; in neutron detectors.
