What is trichlorotrifluoroethane used for?

What is trichlorotrifluoroethane used for?

Trichlorotrifluoroethane was primarily used as a dry cleaning solvent. It was also used as a refrigerant. The manufacture of trichlorotrifluoroethane has been phased out via the Montreal Protocol due to its part in ozone depletion.

How do CFCs affect human health?

CFCs contribute to the loss of the protective ozone layer, which blocks ultraviolet rays from the sun. This exposes more people to UV radiation, which can cause skin cancer. Additionally, increased contact with ultraviolet rays can cause cataracts, macular degeneration and other eye damage.

Are CFCs toxic to humans?

Although CFCs are benign in low concentrations, high concentrations can affect the heart, central nervous system, liver, kidneys and lungs, and extremely high levels can kill. Of more concern, however, are the possible consequences of ozone depletion and global warming.

When were CFCs banned?

Once widely used in the manufacture of aerosol sprays, as blowing agents for foams and packing materials, as solvents, and in refrigeration, its production was banned in 2010, although CFC-11 continues to leak from foam building insulation and appliances manufactured before that year.

What is the formula of Freon 113?


Why is the presence of chlorofluorocarbon in the air harmful?

Man-made compounds such as chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs) and halons destroy ozone in the upper atmosphere (stratosphere). Stratospheric ozone loss can result in potential harm to human health and the environment, including: increased incidence of skin cancer and cataracts.

What happens if you breathe in CFC?

Workers should be warned about the hazards of exposure to CFC-113–particularly that exposure can cause death by cardiac arrhythmia or asphyxiation.

Do we still use CFCs?

Chlorofluorocarbon (CFC) refrigerants were commonly used in equipment manufactured before 1995. The atmospherically benign HFC refrigerants will remain in production, but CFC and HCFC refrigerants will be phased out. Production of CFCs ceased in 1995. HCFC production will cease in 2020 (HCFC-22) or 2030 (HCFC-123).

How long does CFC 113 stay in the atmosphere?

CFC-113 is a very unreactive chlorofluorocarbon. It remains in the atmosphere about 90 years, sufficiently long that it will cycle out of the troposphere and into the stratosphere.

Which is the first number in chlorofluorocarbon?

The first number is the number of hydrogen atoms, plus one, the second gives the number of fluorine atoms, and the remainder are chlorine atoms.

How are chlorofluorocarbons released from the body?

Chlorofluorocarbons are concentrated in the body fat and are slowly released into the blood at concentrations that do not present a risk of cardiac sensitization. Loss of CFC-113 from tissues is rapid during the postexposure period with virtually 100% clearance within 24 h of exposure. Freons are eliminated entirely by the respiratory tract.

What is the formula for Trichlorotrifluoroethane Cl 2?

1,1,2-Trichloro-1,2,2-trifluoroethane, also called trichlorotrifluoroethane or CFC-113, is a chlorofluorocarbon. It has the formula Cl 2 FC-CClF 2. This colorless, volatile liquid is a versatile solvent. CFC-113 measured by the Advanced Global Atmospheric Gases Experiment ( AGAGE) in the lower atmosphere ( troposphere) at stations around the world.