Toluene (data page)

This page provides supplementary chemical data on toluene.

MSDS sheets

Structure and properties
Structure and properties
Index of refraction, nD 1.4969 at 20 °C
Abbe number ?
Dielectric constant, εr 2.379 ε0 at 25 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?
Surface tension 28.52 dyn/cm at 25 °C
Viscosity[1]
1.1813 mPa·sat −25 °C
1.0787 mPa·sat −20 °C
0.9888 mPa·sat −15 °C
0.9095 mPa·sat −10 °C
0.8393 mPa·sat −5 °C
0.7770 mPa·sat 0 °C
0.7214 mPa·sat 5 °C
0.6717 mPa·sat 10 °C
0.6270 mPa·sat 15 °C
0.5867 mPa·sat 20 °C
0.5503 mPa·sat 25 °C
0.5173 mPa·sat 30 °C
0.4873 mPa·sat 35 °C
0.4599 mPa·sat 40 °C
0.4349 mPa·sat 45 °C
0.4120 mPa·sat 50 °C

Thermodynamic properties
Phase behavior
Triple point 178.15 K (−94.99 °C), ? Pa
Critical point 591.79 K (318.64 °C), 4.109 MPa
Std enthalpy change
of fusionΔfusHo		 6.636 kJ/mol
Std entropy change
of fusionΔfusSo		 37.25 J/(mol·K)
Std enthalpy change
of vaporizationΔvapHo		 38.06 kJ/mol
Std entropy change
of vaporizationΔvapSo		 87.30 J/(mol·K)
Solid properties
Std enthalpy change
of formation ΔfHosolid		 ? kJ/mol
Standard molar entropy
Sosolid		 ? J/(mol K)
Heat capacity cp liquid 181,2 J/(mol K)
Heat capacity cp gas 103,6 J/(mol K)
Liquid properties
Std enthalpy change
of formation ΔfHoliquid		 +12.0 kJ/mol
Standard molar entropy
Soliquid		 220.96 J/(mol K)
Heat capacity cp 155.96 J/(mol K)
Gas properties
Std enthalpy change
of formation ΔfHogas		 +50.00 kJ/mol
Standard molar entropy
Sogas		 ? J/(mol K)
Heat capacity cp 103.7 J/(mol K)
van der Waals' constants[2] a = 2438 L2 kPa/mol2
b = 0.1463 liter per mole

Vapor pressure of liquid
P in mm Hg11040100400760152038007600152003040045600
T in °C−256.43542

Spectral data
UV-Vis
Spectrum NIST
Lambda-max 253, 259, 261, 268nm
Log Ε 2.36, 2.42, 2.43, 2.27
IR
Spectrum NIST
Major absorption bands 3028, 1605, 1496, 729, 696 cm−1
NMR
Proton NMR (CDCl3, 300 MHz) δ 7.17–7.11 (m, 2H), 7.08–7.01 (m, 3H), 2.32 (s, 3H)
Carbon-13 NMR (CDCl3, 100 MHz) δ 137.7, 128.7, 127.9, 125.0, 20.8
Other NMR data ?
MS
Masses of
main fragments		 ?
Except where noted otherwise, data are given for
standard ambient temperature and pressure (25°C, 101.3 kPa)
Disclaimer and references

Except where noted otherwise, data relate to standard ambient temperature and pressure.

References
  1. "Pure Component Database" (Queriable database). Chemical Engineering Research Information Center. Retrieved 12 May 2007.
  2. Lange's Handbook of Chemistry 10th ed, pp 1522–1524

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