The Saab Network Now Mailing List FAQ | |
|
[ Prev by Date ] [ Next by Date ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: AC- R12 v R134a
Posted by Duane Dostie (more from Duane Dostie) on Wed, 30 Jun 1999 16:56:21
In Reply to: AC- R12 v R134a, Chasisaac1, Tue, 29 Jun 1999 16:36:44
> there is R12a??
Nope. R12 (dichlorodifluoromethane) has only one isomer. That is there is only one possible way to orient the two chlorines and two fluorines around the central carbon. The 'a' desigantion represents the most symmetric isomer.
I assume that it is different than R12 (ozone friendly). Is > it available in the US and is there a conversion kit for it? My AC isn't
> working as well as it could be, so I might do a conversion and replace most > everything. > > Also, what is the difference between R12a and R134a?
No such animal, though I wouldn't rule out the possibility of someone marketing an R12 replacement under the trade name of 'R12a.' Stranger things have happened.
R134a is the most symetric isomer of tetrafluoroethane. Two fluorines on each of the two central carbons(1,1-difluoro-2,2-difluoroethane) R134 is 1,1,1-trifluoro-2-fluoroethane, the unsymmetrical isomer.
R12 is a CFC(chloro-fluorocarbon), while R134a is an HFC(hydro-fluorocarbon), which due to the absence of chlorine has a lower ODP(ozone depletion potential) than R12.
Duane
Posts in this Thread:
- AC- R12 v R134a, Chasisaac1, Tue, 29 Jun 1999 16:36:44
- Re: AC- R12 v R134a, David Prantl, Thu, 1 Jul 1999 21:14:27
- Re: AC- R12 v R134a, Duane Dostie, Thu, 1 Jul 1999 21:13:59
- RE: AC- R12 v R134a, SimonC, Thu, 1 Jul 1999 08:42:44
- RE: AC- R12 v R134a, SimonC, Wed, 30 Jun 1999 23:08:14
- Re: AC- R12 v R134a, Duane Dostie, Wed, 30 Jun 1999 16:56:21
- Re: AC- R12 v R134a, Keifer5448, Wed, 30 Jun 1999 15:30:35
- RE: AC- R12 v R134a, SimonC, Wed, 30 Jun 1999 11:16:18
- RE: AC- R12 v R134a, SimonC, Tue, 29 Jun 1999 22:36:03
- Re: AC- R12 v R134a, James Law, Tue, 29 Jun 1999 22:35:46
StateOfNine.com
|
SaabClub.com
|
Jak Stoll Performance
|
M Car Covers
|
Ad Available
|
This is a moderated FAQ - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no Spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. TSN has been a moderated forum since 1988. For usage guidelines, see the
TSN Mission and Purpose Page. Please remember that you are
not anonymous Your address is: 18.188.115.118 - Using Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) - Logged.
|