isobutane vapors

Can A Isobutane Backpacking Tank Be Refilled Using Propane? Since propane has a much lower boiling point that isobutane, liquid propane can cause serious injury in prolonged exposures. Protective gear is a must during the refilling process. Transporting propane requires extra precautions as well. Is isobutane the same as propane? Isobutane has two distinct advantages