How is Opteon™ yf (HFO-1234yf) different from HFC-134a?
HFC-134a is a hydrofluorocarbon refrigerant, while Opteon™ yf (HFO-1234yf) is a hydrofluoro-olefin refrigerant. HFC refrigerants are composed of hydrogen, fluorine and carbon atoms connected by single bonds between the atoms. HFO refrigerants are composed of hydrogen, fluorine and carbon atoms, but contain at least one double bond between the carbon atoms.