BernzOmatic Butane Refill, 5.6 oz Net Content, Compressed Liquefied Gas Form, Compositions: Butane, Isobutane, Propane, -155.9, -126.4, -99.9 deg F Flash Point, -43.78, 11.3, 31.1 deg F Boiling Point, -305.86, -256, -216.94 deg F Melting Point, 2.1, 2.595, 1.55 Vapor Density, 0.501, 0.549 Relative Density