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Toluene (data page)

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This page provides supplementary chemical data on toluene.

MSDS sheets

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Structure and properties

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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·s at −25 °C
1.0787 mPa·s at −20 °C
0.9888 mPa·s at −15 °C
0.9095 mPa·s at −10 °C
0.8393 mPa·s at −5 °C
0.7770 mPa·s at 0 °C
0.7214 mPa·s at 5 °C
0.6717 mPa·s at 10 °C
0.6270 mPa·s at 15 °C
0.5867 mPa·s at 20 °C
0.5503 mPa·s at 25 °C
0.5173 mPa·s at 30 °C
0.4873 mPa·s at 35 °C
0.4599 mPa·s at 40 °C
0.4349 mPa·s at 45 °C
0.4120 mPa·s at 50 °C

Thermodynamic properties

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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

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P in mm Hg 1 10 40 100 400 760 1520 3800 7600 15200 30400 45600
T in °C −25 6.4 35 42

Spectral data

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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 		?
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References

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  1. ^ "Pure Component Database" (Queriable database). Chemical Engineering Research Information Center. Retrieved 12 May 2007.
  2. ^ Lange's Handbook of Chemistry 10th ed (1967), pp 1522–1524
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