In: Chemistry
What are the differences between a CFC, HCFC, and an HFC? (Note: you should include more than their chemical make-up in your answer.)
Hi,
All the current refrigerants are classified in these three categories.
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 CFC refrigerants  | 
 HCFC refrigerants  | 
 HFC refrigerants  | 
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 The basic composition is Carbon, Fluorine, Oxygen  | 
 The basic composition is Hydrogen, Carbon, Fluorine, Oxygen  | 
 The basic composition is Hydrogen, Fluorine, Oxygen  | 
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 The CFC refrigerant is now totally banned from use or production within all countries covered by the Montreal Protocol  | 
 The HCFC gases are to be banned from Virgin use from Jan 2010. The general phase out shall be complete by 2015 unless the dates are brought forward.  | 
 The HFC gases are used extensively in everyday RAC systems. There is no current ban upon these gases but a responsible use and equipment inspection are mandatory under the "F gas" regulations.  | 
| 
 The CFC refrigerants such as the once popular R12 has the highest ozone depleting rating (1) and is also a green house gas  | 
 The HCFC refrigerants such as the popular R22 has a potential to damage ozone (rating 0.05) and is also a green house gas  | 
 The HFC refrigerants have no ozone depletion potential but do act as a green house gas.  | 
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 It is unlikely that many systems exist in operation with this refrigerant  | 
 There are still many systems utilizing these refrigerants  | 
 They are the currently used refrigerants.  |