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, ΔfusH |
8.540 kJ/mol |
Std entropy change of fusion, ΔfusS |
51.8 J/(mol·K) |
Std enthalpy change of vaporization, ΔvapH |
32 kJ/mol |
Std entropy change of vaporization, ΔvapS |
51.8 J/(mol·K) |
Solid properties | |
Std enthalpy change of formation, ΔfH |
? kJ/mol |
Standard molar entropy, S |
? J/(mol K) |
Heat capacity, cp | ? J/(mol K) |
Liquid properties | |
Std enthalpy change of formation, ΔfH |
? kJ/mol |
Standard molar entropy, S |
203.8 J/(mol K) |
Enthalpy of combustion, ΔcH |
−2501.2 kJ/mol |
Heat capacity, cp | 123 J/(mol K) at 25°C |
Gas properties | |
Std enthalpy change of formation, ΔfH |
−184.2 kJ/mol |
Standard molar entropy, S |
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[2] | 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 |
![](../I/m/LogTHFvaporPressure.png)
Distillation data
Vapor-Liquid Equilibrium of Tetrahydrofuran/Ethanol[4] 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 |
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References
- "Tetrahydrofuran Physical Properties". Sigma-Aldrich. Retrieved 25 June 2009.
- "Tetrahydrofuran (THF) Storage and Handling" (PDF). BASF. Archived from the original (PDF) on 9 March 2008. Retrieved 24 May 2007.
- "Pure Component Properties". Chemical Engineering Research Information Center. Retrieved 24 May 2007.
- "Binary Vapor-Liquid Equilibrium Data". Chemical Engineering Research Information Center. Retrieved 24 May 2007.
Except where noted otherwise, data relate to standard ambient temperature and pressure.
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