Few U.S. civilians even noticed when WPB clamped down on dichlorodifluoromethane (C C12 F2). Most people did not know that they 1) had ever had it, 2) needed it, 3) had lost it. But C C12 F2 is ...

Freon 12 is the Dupont trade name for flurocarbon refrigerant gas, CCl 2 F 2. The material has a molecular weight of 120.92. Its critical constants are: T c = 385 K, p c = 41.2 bars, and Z c = (p c v ...

Q: A few years ago, I had the factory air conditioning on my 1970 Oldsmobile converted from Freon R12 to R-134a. This summer, the air conditioner only blew warm air. Can I convert back to Freon or do ...