What chemicals destroy the ozone layer?

Ozone Depletion. When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 100,000 ozone molecules before it is removed from the stratosphere. Ozone can be destroyed more quickly than it is naturally created.

How are CFCs managed When why was it banned what replaced its use as a refrigerant?

CFCs were phased out via the Montreal Protocol due to their part in ozone depletion. The atmospheric impacts of CFCs are not limited to their role as ozone-depleting chemicals. Infrared absorption bands prevent heat at that wavelength from escaping earth’s atmosphere.

How does CFCs destroy the ozone layer?

Once in the atmosphere, CFCs drift slowly upward to the stratosphere, where they are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules.

What is ozone layer and how it is getting depleted?

Ozone layer depletion is the thinning of the ozone layer present in the upper atmosphere. This happens when the chlorine and bromine atoms in the atmosphere come in contact with ozone and destroy the ozone molecules. One chlorine can destroy 100,000 molecules of ozone. It is destroyed more quickly than it is created.

What was the primary trade name for CFCs?

Freon
CFC production and use In the early literature, CFC 11 and CFC 12 were also called chlorofluoromethanes due to their methane-type structure. The trade name of CFCs (DuPond) is Freon (F 11, F 12, F 113). The main use of CFCs is summarized in Table 1.

Which chemical released by CFC is harmful to ozone?

Chlorine- chlorine is a toxic chemical exerted from Chlorofluorocarbon. It contributes a major portion in depleting the ozone layer and also causing various health problems in human beings and animals.

What is the CFCs ozone?

Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth’s protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.

Are main ozone depletes?

The main uses of ozone depleting substances include: CFCs and HCFCs in refrigerators and air conditioners, HCFCs and halons in fire extinguishers, CFCs and HCFCs as aerosol propellants, and.

What is CFC chemistry?

chlorofluorocarbon (CFC), any of several organic compounds composed of carbon, fluorine, and chlorine. When CFCs also contain hydrogen in place of one or more chlorines, they are called hydrochlorofluorocarbons, or HCFCs. CFCs are also called Freons, a trademark of the E.I.