Melting point: 14 degree  Boiling point: 141 degree  Comparative density (H2O)=1: 1.05  Vapour pressure: 3mmHg  Combustion heat, 20 degree(4.540Kcal/g): 1370KJ/ mol  Critical temperature: 342degree  Critical pressure: (56 ATM): 5.67Mpa  Dissolve ability: Dissolved with water--the mixture can be dissolved in Ethanol, aether  Flammability: . Flammable  Flash point: 51degree(sealed condition) 68degree(unpacked)  Explosive range: 5.5_20.5%(V%)  Firing point: 395degree