0
Most countries abide by the ban on chlorofluorocarbons. The few that do not are small and are not considered significant contributors. They may also (eventually) face economic sanctions for continued use of CFCs.
Answer:
There is no ban of all chlorinated hydrocarbons (HFCs and HCFCs). The control of CFCs and HCFCs was covered in an accord called the Montreal Protocol. It stated several things which were agreed to by signing countries:
- There are several compounds of chloro- and Bromo- fluorocarbons that must be controlled to prevent stratospheric ozone degradation
- These substances will be controlled and eliminated on a timetable
- The timetable is stepped and adjusted to meet the needs and abilities of countries to comply with it.
- For CFCss the 1991 to 1992 controls are based on the 1986 levles of use and production
- For CFCs in 1994 the consumption and production will be no more than 25% of 1986 values
- For CFCs in 1996 the consumption and production will be no more than 0% of 1986 values
- Related , but less active CFCs (Hydrochlorofluorocarbons, the HCFCs) will be phased out on their own schedule. This is due to vital uses of compounds like Halons in firefighting and refrigeration. The use of these compounds was to replace the more active HFCs
- HCHCs are also less active as Global Warming gases
- HCFC phase out was initiated in 1996
- HCFCs will be phased out by 2030
- There are some uses of HCFCs where there are no viable alternatives. These include medical inhalers and submarine and aircraft fire fighting systems. HCFCs will be allowed to be used in these specific used without elimination
What else can I help you with?
What class of molecules has CFCs replace?
CFC's are ozone depleting substances. HCFC's are an alternative to CFC's.
Why is an HCFC refrigerant considered less harmfull to the ozone than a CFC refrigerant?
HCFC refrigerants contain hydrogen, which makes them less harmful to the ozone layer compared to CFC refrigerants that contain chlorine. When CFCs break down in the atmosphere, they release chlorine atoms that can destroy ozone molecules. In contrast, HCFCs break down more quickly and release fewer chlorine atoms, reducing their ozone-depleting potential.
What is an example of CFC refrigerant?
The example of CFC is R-12. It is being used as a refrigerant.
Which gas is used instead of CFC in Refrigerators now-a-days?
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)
Appliances containing cfc refrigerant can be evacuated to atmopheric pressures when?
Small appliances containing HCFC refrigerants can be evacuated to atmospheric pressure when leaks make evacuation to the prescribed level unreachable. HCFC stands for hydrochlorofluorocarbons.
How does hcfc destroy ozone layer?
HCFC do not destroy ozone. They are an alternative to CFC's.
What substance depletes ozone in the stratosphere?
CFC's and HCFC's
What class of molecules has CFCs replace?
CFC's are ozone depleting substances. HCFC's are an alternative to CFC's.
IS R-134a an HCFC refrigerant?
It's a CFC refrigerant.
How do CFC's substitues prevent the destruction of the stratospheric ozone?
CFC's have new substitutes in market. They are called as HCFC's.
Which element help protect the ozone layers?
HCFC protect the ozone. They are an alternative to CFC's.
Ozone freindly chemicals used by cfcs?
Nowadays we have alternatives for CFC's. These are called HCFC's.
Whats the difference between CFC and HCFC refrigerates?
you may have better luck getting an answer in the sciences category. I know that cfcs are now banned from hairsprays, etc. and have been replaced by hcfcs, which are 10% better for the environment.
What is the alternative solution for destroying ozone molecules by using AC?
There is an alternate solution for CFC's. These are HCFC's.
What are the substitute for chlorofloro carbon which is responsible for ozone depletion?
There is a substitute for CFC's in market. It is called HCFC's.
What can you do to prevent the ozone from disappearing?
In order to prevent depletion, ban the use of CFC's. You can use HCFC's.
What are two ways to stop the Ozone eaters?
Ozone eaters are CFC's. They should be stopped and HCFC's be used.
