This page provides supplementary chemical data on toluene.
MSDS sheets
Structure and properties
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! | Structure and properties
|-
| Index of refraction, n<sub>D</sub>
| 1.4969 at 20 °C <!-- Please omit if not applicable -->
|-
| Abbe number
|? <!-- Please omit if not applicable -->
|-
| Dielectric constant, ε<sub>r</sub>
| 2.379 ε<sub>0</sub> at 25 °C
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| Bond strength
| ? <!-- Specify which bond. Please omit if not applicable -->
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| Bond length
| ? <!-- Specify which bond. Please omit if not applicable -->
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| Bond angle
| ? <!-- Specify which angle, e.g. Cl-P-O. Please omit if not applicable -->
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| Magnetic susceptibility
| ? <!-- Please omit if not applicable -->
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| Surface tension
| 28.52 dyn/cm at 25 °C
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| Viscosity
|
{|
|-
| 1.1813 mPa·s || at −25 °C
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| 1.0787 mPa·s || at −20 °C
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| 0.9888 mPa·s || at −15 °C
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| 0.9095 mPa·s || at −10 °C
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| 0.8393 mPa·s || at −5 °C
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| 0.7770 mPa·s || at 0 °C
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| 0.7214 mPa·s || at 5 °C
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| 0.6717 mPa·s || at 10 °C
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| 0.6270 mPa·s || at 15 °C
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| 0.5867 mPa·s || at 20 °C
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| 0.5503 mPa·s || at 25 °C
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| 0.5173 mPa·s || at 30 °C
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| 0.4873 mPa·s || at 35 °C
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| 0.4599 mPa·s || at 40 °C
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| 0.4349 mPa·s || at 45 °C
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| 0.4120 mPa·s || at 50 °C
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== Thermodynamic properties == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
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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
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| Std enthalpy change<br/>of fusionΔ<sub>fus</sub>H<sup><s>o</s></sup>
| 6.636 kJ/mol
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| Std entropy change<br/>of fusionΔ<sub>fus</sub>S<sup><s>o</s></sup>
| 37.25 J/(mol·K)
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| Std enthalpy change<br/>of vaporizationΔ<sub>vap</sub>H<sup><s>o</s></sup>
| 38.06 kJ/mol
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| Std entropy change<br/>of vaporizationΔ<sub>vap</sub>S<sup><s>o</s></sup>
| 87.30 J/(mol·K)
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! | Solid properties
|-
| Std enthalpy change<br/>of formation Δ<sub>f</sub>H<sup><s>o</s></sup><sub>solid</sub>
| ? kJ/mol
|-
| Standard molar entropy<br/>S<sup><s>o</s></sup><sub>solid</sub>
| ? J/(mol K)
|-
| Heat capacity c<sub>p</sub> <sub>liquid</sub>
| 181,2 J/(mol K)
|-
| Heat capacity c<sub>p</sub> <sub>gas</sub>
| 103,6 J/(mol K)
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! | Liquid properties
|-
| Std enthalpy change<br/>of formation Δ<sub>f</sub>H<sup><s>o</s></sup><sub>liquid</sub>
| +12.0 kJ/mol
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| Standard molar entropy<br/>S<sup><s>o</s></sup><sub>liquid</sub>
| 220.96 J/(mol K)
|-
| Heat capacity c<sub>p</sub>
| 155.96 J/(mol K)
|-
! | Gas properties
|-
| Std enthalpy change<br/>of formation Δ<sub>f</sub>H<sup><s>o</s></sup><sub>gas</sub>
| +50.00 kJ/mol
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| Standard molar entropy<br/>S<sup><s>o</s></sup><sub>gas</sub>
| ? J/(mol K)
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| Heat capacity c<sub>p</sub>
| 103.7 J/(mol K)
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| van der Waals' constants
| a = 2438 L<sup>2</sup> kPa/mol<sup>2</sup><br> b = 0.1463 liter per mole
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Vapor pressure of liquid
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| | P in mm Hg || 1 || 10 || 40 || 100 || 400 || 760 || 1520 || 3800 || 7600 || 15200 || 30400 || 45600
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| | T in °C || −25 || 6.4 || 31.8 |35|| 42 ||
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|}
Spectral data
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! width="85%" align="center" cellspacing="3" style="font-size:95%; border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" | UV-Vis
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| Spectrum
| NIST
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| Lambda-max
| 253, 259, 261, 268nm
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| Log Ε
| 2.36, 2.42, 2.43, 2.27
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! colspan="2" | IR
|-
| Spectrum
| NIST
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| Major absorption bands
| 3028, 1605, 1496, 729, 696 cm<sup>−1</sup>
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! colspan="2" | NMR
|-
| Proton NMR
| (CDCl<sub>3</sub>, 300 MHz) δ 7.17–7.11 (m, 2H), 7.08–7.01 (m, 3H), 2.32 (s, 3H)
|-
| Carbon-13 NMR <!-- Link to image of spectrum -->
| (CDCl<sub>3</sub>, 100 MHz) δ 137.7, 128.7, 127.9, 125.0, 20.8
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| Other NMR data <!-- Insert special data e.g. <sup>19</sup>F chem. shifts, omit if not used -->
| ?
|-
! width="85%" align="center" cellspacing="3" style="font-size:95%; border: 1px solid #C0C090; background-color: #F8EABA; margin-bottom: 3px;" colspan="2" | MS
|-
| Masses of <br>main fragments
| ? <!-- Give list of major fragments -->
|}