Tetrahydrofuran (data page)

Template:Short description 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

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

Thermodynamic properties

Template:Chembox header | 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)
Template:Chembox header | Solid properties
Std enthalpy change of formation, ΔfHosolid	? kJ/mol
Standard molar entropy, Sosolid	? J/(mol K)
Heat capacity, cp	81.65 J/(mol K) at −108.39°C
Template:Chembox header | 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	107.4 J/(mol K) at −108.39 °C 123.9 J/(mol K) at 25°C
Template:Chembox header | 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

Template:Chembox header | P in mBar	9.9	19.5	36.3	63.9	107	173	268	402	586	831	1013
Template:Chembox header | T in °C	−30	−20	−10	0	10	20	30	40	50	60	66

log₁₀ Tetrahydrofuran vapor pressure. Uses formula: ${\log }_e{P}_{mmHg}=$${\log }_e(\frac{760}{101.325})-9.608804{\log }_e(T+273.15)-\frac{6339.983}{T+273.15}+78.35769+8.183476\times 10^{-06}(T+273.15{)}^2$ obtained from CHERIC

Distillation data

Vapor-Liquid Equilibrium of Tetrahydrofuran/Ethanol 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

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

References

• Template:Cite journal