Tetrahydrofuran (THF), C 4 H 8 O

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Tetrahydrofuran (THF), C₄H₈O
Categories:	Fluid; Solvent
Key Words:	C4H8O
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Physical Properties	Original Value	Comments

Density	0.889 g/cc @Temperature 20.0 °C
Viscosity	0.519 cP @Temperature 20.0 °C	Dynamic Viscosity
Molecular Weight	72.107 g/mol
Vapor Pressure	129.638 torr @Temperature 20.0 °C
Surface Tension	26.4 dynes/cm @Temperature 20.0 °C

Chemical Properties	Original Value	Comments
Critical Pressure	51.2 atm
Critical Temperature	267 °C
Critical Density	0.322 g/cc
Critical Molar Volume	224 cm³/mol

Electrical Properties	Original Value	Comments
Dielectric Constant	7.58 @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
Heat of Vaporization	410.2 J/g
Specific Heat Capacity	1.718 J/g-°C
	1.413 J/g-°C @Temperature 25.0 °C	Vapor
Thermal Conductivity	0.1205 W/m-K @Temperature 20.0 °C
Melting Point	-108.5 °C
Boiling Point	66.0 °C

Optical Properties	Original Value	Comments
Refractive Index	1.407 @Wavelength 589.3 nm	n_D

Descriptive Properties
Antoine's Vapor Pressure A Parameter	16.1069
Antoine's Vapor Pressure B Parameter	2768.38
Antoine's Vapor Pressure C Parameter	-46.9
Antoine's Vapor Pressure Formula	ln π_p = A - B/(T+C)	P in mmHg and T in K
CAS registry number (CARN)	109-99-9
Chemical Formula	C₄H₈O
Critical Compressibility (Zc)	0.259
Dipole moment (p/C.m)	5.671E-28
Dynamic Viscosity Formula	log₁₀ η=A(1/T-1/B)
Dynamic Viscosity Parameter A	419.79
Dynamic Viscosity Parameter B	244.46
Henry's Law Constant (atm m³/mol)	5.26E-05
Molar Heat Capacity (298K)	101.869 J/mol-K
Molar Heat Capacity of Vapor a Parameter	-19.0916
Molar Heat Capacity of Vapor b Parameter	0.5159
Molar Heat Capacity of Vapor c Parameter	-0.0004129
Molar Heat Capacity of Vapor d Parameter	1.453E-07
Molar Heat Capacity of Vapor Formula	C_p = a + bT + cT² + dT³	C_p in J/mol-K
UN Number	2056
UV cut-off (nm)	220

References for this datasheet.

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