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Tetrahydrofuran Physical Properties
Synonym THF Beilstein Registry 102391
Molecular Formula C4H8O EG/EC Number 2037268
Molecular Weight 72.11 MDL Number MFCD00005356
CAS Number 109-99-9 Vapor Pressure 143 mm Hg (20°C)
Density 0. 889 g/mL at 25ºC Dielectric Constant 7.52 at 22ºC
Boiling Point 65-67ºC Dipole Moment 1.750
Melting Point -108ºC UV cutoff 220 nm
Flash Point -17.2ºC Refractive Index 1.407 at 20ºC
Viscosity 0.456 at 25ºC Vapor Density 2.5 (vs. air)
RIDADR UN 2056 3/PG 2 Risk Statements 11-19-36/37
Hazard Codes F,Xi Safety Statements 16-29-33
Tetrahydrofuran Miscibility / Immiscibility Table