freon-12

[wolf1]

Greg Hill wrote:
> 
> Hi, can anyone give me any information on freon-12 as a substitute for
> propane in the flash-cooling and storage of crystals?  What are the pros
> and cons?  Where can one buy this stuff?
> 
> Thanks in advance!
> 
> Dan
R12 is not being made anymore as of last year
(except for third world countries)
you can still find it in auto parts stores for 
around $25.00 per 12 oz can. there are huge
stockpiles still avilable if you want to pat the price.