Description : Why are CFCs banned as refrigerator coolants but are still allowed in aerosol cans?
Last Answer : Chlorofluorocarbons (CFCs) were once used as propellants inaerosol cans, but since the Montreal Protocol was agreed to in1989, they have been replaced in nearly every country. This isbecause ... hydrocarbons,typically propane, n-butane and isobutane.Food sprays use nitrous oxide and carbon dioxide.