Toluene (data page)
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This page provides supplementary chemical data on toluene.
MSDS sheets
[edit]Structure and properties
[edit]Structure and properties | |||||||||||||||||||||||||||||||||
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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] |
|
Thermodynamic properties
[edit]Phase behavior | |
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Triple point | 178.15 K (−94.99 °C), ? Pa |
Critical point | 591.79 K (318.64 °C), 4.109 MPa |
Std enthalpy change of fusionΔfusH |
6.636 kJ/mol |
Std entropy change of fusionΔfusS |
37.25 J/(mol·K) |
Std enthalpy change of vaporizationΔvapH |
38.06 kJ/mol |
Std entropy change of vaporizationΔvapS |
87.30 J/(mol·K) |
Solid properties | |
Std enthalpy change of formation ΔfH |
? kJ/mol |
Standard molar entropy S |
? 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 ΔfH |
+12.0 kJ/mol |
Standard molar entropy S |
220.96 J/(mol K) |
Heat capacity cp | 155.96 J/(mol K) |
Gas properties | |
Std enthalpy change of formation ΔfH |
+50.00 kJ/mol |
Standard molar entropy S |
? 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
[edit]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
[edit]UV-Vis | |
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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 |
? |
This box:
- Except where noted otherwise, data relate to Standard temperature and pressure.
- Reliability of data general note.
References
[edit]- ^ "Pure Component Database" (Queriable database). Chemical Engineering Research Information Center. Retrieved 12 May 2007.
- ^ Lange's Handbook of Chemistry 10th ed (1967), pp 1522–1524
External links
[edit]- NIST website
- Physical and Chemical Properties of Toluene in chemeo.com