What is the name of the refrigerant that has the following characteristics? It is nonflammable, odorless, nontoxic, it does not have a corrosive effect on metal if water is present and at atmospheric pressure it has a boiling point of -40.6 oC
a) Ammonia
b) Freon-22
c) Sulphur Dioxide
d) Butane
e) Propane
Answer: B