1.Melting point:-104.8°C 2.Boiling point:42.3°C 3.Density:0.8593 4.Rrefractive index:1.3513 5.Appearance:colorless and clarify liquid which is flammabled 6.chemical formula:C3H8O2 CH2(OCH3)2 7.Danger:it can be formed as explosive mixture with steam and air.it can easy cause burning when encounters with heat or strong oxidant. 8.Combustion (decomposition) : carbon monoxide, carbon dioxide