This page provides supplementary chemical data on n-hexane.
Material Safety Data Sheet edit
The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source and follow its directions.
Structure and properties edit
Structure and properties | |
---|---|
Index of refraction, nD | 1.3727 at 20 °C |
Abbe number | ? |
Dielectric constant, εr | 1.890 ε0 at 20 °C |
Bond strength | ? |
Bond length | |
Bond angle | ? |
Magnetic susceptibility | ? |
Surface tension[1] | 20.5 dyn/cm at 0 °C 18.4 dyn/cm at 20 °C 13.4 dyn/cm at 68 °C |
Viscosity[2] | 0.4012 mPa·s at 0 °C 0.3258 mPa·s at 20 °C 0.2798 mPa·s at 40 °C 0.2288 mPa·s at 80 °C |
Thermodynamic properties edit
Phase behavior | |
---|---|
Triple point | 178.0 K (–95.1 °C), 1.23 Pa |
Critical point | 507.6 K (234.5 °C), 3020 kPa |
Std enthalpy change of fusion, ΔfusH |
13 kJ/mol |
Std entropy change of fusion, ΔfusS |
70 J/(mol·K) |
Std enthalpy change of vaporization, ΔvapH |
28.85 kJ/mol at 68.8 °C |
Std entropy change of vaporization, ΔvapS |
? J/(mol·K) |
Solid properties | |
Std enthalpy change of formation, ΔfH |
? kJ/mol |
Standard molar entropy, S |
? J/(mol K) |
Heat capacity, cp | ? J/(mol K) |
Liquid properties | |
Std enthalpy change of formation, ΔfH |
–198.7 kJ/mol |
Standard molar entropy, S |
295 J/(mol K) |
Enthalpy of combustion, ΔcH |
–4163 kJ/mol |
Heat capacity, cp | 197.66 J/(mol K) |
Gas properties | |
Std enthalpy change of formation, ΔfH |
–167.2 kJ/mol |
Standard molar entropy, S |
388.82 J/(mol K) |
Heat capacity, cp | 142.6 J/(mol K) at 25 °C |
van der Waals' constants[3] | a = 2471 L2 kPa/mol2 b = 0.1735 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 | –53.9 | –25.0 | –2.3 | 15.8 | 49.6 | 68.7 | 93.0 | 131.7 | 166.6 | 209.4 | — | — |
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.
Distillation data edit
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Spectral data edit
UV-Vis | |
---|---|
λmax | ? nm |
Extinction coefficient, ε | ? |
IR | |
Major absorption bands | ? cm−1 |
NMR | |
Proton NMR | (CDCl3, 400 MHz) δ 1.35-1.23 (m, 8H), 0.91-0.86 (m, 6H) |
Carbon-13 NMR | (CDCl3, 25 MHz) δ 31.9, 22.9, 12.2 |
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
- ^ Lange's Handbook of Chemistry, 10th ed, pp 1661-1663
- ^ Lange's Handbook of Chemistry, 10th ed, pp 1669-1674
- ^ Lange's Handbook of Chemistry 10th ed, pp 1522-1524
- ^ "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 25 May 2007.
- ^ a b c "Binary Vapor-Liquid Equilibrium Data". Chemical Engineering Research Information Center. Retrieved 25 May 2007.
- Linstrom, Peter (1997). "NIST Standard Reference Database". National Institute of Standards and Technology. doi:10.18434/T4D303.
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