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.
![](https://upload.wikimedia.org/wikipedia/commons/f/f8/LogHexaneVaoporPressure.png)
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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