五氟乙烷的英文别名:FC-125; HFC-125; 1,1,1,2,pentafluoroethane; trifluoroacetyl fluoride,别名HFC125或R125,属于无色无味不燃气体。相对密度为(水=1)1.245,饱和蒸汽压为1.317MPa,