Tetrahydrofuran (data page)

This page provides supplementary chemical data on tetrahydrofuran.

Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions. MSDS is available at Mallinckrodt Baker.

Structure and properties

Structure and properties
Index of refraction, nD 1.4040 at 25°C
Abbe number ?
Dielectric constant, εr[1] 7.52 ε0 at 22 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?
Viscosity[1] 0.456 mPa·s at 25°C

Thermodynamic properties

Phase behavior
Triple point 164.76 K (−108.39 °C), ? Pa
Critical point 541 K (268 °C), 5190 kPa
Std enthalpy change
of fusion, ΔfusHo 		8.540 kJ/mol
Std entropy change
of fusion, ΔfusSo 		51.8 J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo 		32 kJ/mol
Std entropy change
of vaporization, ΔvapSo 		51.8 J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid 		? kJ/mol
Standard molar entropy,
Sosolid 		? J/(mol K)
Heat capacity, cp[2] 81.65 J/(mol K) at −108.39°C
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid 		? kJ/mol
Standard molar entropy,
Soliquid 		203.8 J/(mol K)
Enthalpy of combustion, ΔcHo −2501.2 kJ/mol
Heat capacity, cp[2] 107.4 J/(mol K) at −108.39 °C

123.9 J/(mol K) at 25°C

Gas properties
Std enthalpy change
of formation, ΔfHogas 		−184.2 kJ/mol
Standard molar entropy,
Sogas 		301.7 J/(mol K)
Heat capacity, cp 76.6 J/(mol K) at 25°C

Vapor pressure of liquid

Vapor pressure 143 mm Hg at 20°C[1]

P in mBar[3] 9.9 19.5 36.3 63.9 107 173 268 402 586 831 1013
T in °C −30 −20 −10 0 10 20 30 40 50 60 66
log10 Tetrahydrofuran vapor pressure. Uses formula: obtained from CHERIC[4]

Distillation data

Vapor-Liquid Equilibrium
of Tetrahydrofuran/Ethanol[5]
P = 100 kPa
BP
Temp.
°C 		% by mole THF
liquid vapor
78. 0.00 0.00
77.4 1.72 3.69
76.2 5.36 11.5
73.8 13.9 26.4
71.0 26.3 42.8
67.7 49.7 62.8
67.2 54.3 65.4
65.9 71.5 76.2
65.4 85.7 86.5
65.2 90.8 90.8
65.4 91.8 91.48
65.4 94.99 94.46
65.5 98.15 97.9
65.6 100.0 100.0

Spectral data

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands ? cm−1
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments 		 
  This box:
  

References

  1. ^ a b c "Tetrahydrofuran Physical Properties". Sigma-Aldrich. Retrieved 25 June 2009.
  2. ^ a b Lebedev, B.V; Rabinovich, I.B; Milov, V.I; Lityagov, V.Ya (1 April 1978). "Thermodynamic properties of tetrahydrofuran from 8 to 322 K". The Journal of Chemical Thermodynamics. 10 (4): 321–329. doi:10.1016/0021-9614(78)90064-2. ISSN 0021-9614.
  3. ^ "Tetrahydrofuran (THF) Storage and Handling" (PDF). BASF. Archived from the original (PDF) on 9 March 2008. Retrieved 24 May 2007.
  4. ^ "Pure Component Properties". Chemical Engineering Research Information Center. Retrieved 24 May 2007.
  5. ^ "Binary Vapor-Liquid Equilibrium Data". Chemical Engineering Research Information Center. Retrieved 24 May 2007.