M-Xylene (data page)
This page provides supplementary chemical data on m-Xylene.
Material Safety Data Sheet
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 such as SIRI, and follow its directions.
Structure and properties
Structure and properties | |
---|---|
Index of refraction, nD | 1.49722 at 20 °C |
Abbe number | ? |
Dielectric constant,[1] εr | 2.374 ε0 at 20 °C |
Bond strength | ? |
Bond length | ? |
Bond angle | ? |
Magnetic susceptibility | ? |
Surface tension[2] | 31.15 dyn/cm at 0 °C 28.90 dyn/cm at 20 °C 20.46 dyn/cm at 100 °C |
Viscosity[3] | 0.8059 mPa·s at 0 °C 0.6200 mPa·s at 20 °C 0.4970 mPa·s at 40 °C 0.3455 mPa·s at 80 °C 0.2418 mPa·s at 130 °C |
Solubility[4] | 0.203 g/L at 0 °C 0.161 g/L at 25 °C 0.22 g/L at 40 °C |
Thermodynamic properties
Phase behavior | |
---|---|
Triple point | 219.6 K (–53.5 °C), ? Pa |
Critical point | 618 K (345 °C), ? Pa |
Std enthalpy change of fusion, ΔfusH |
11.57 kJ/mol |
Std entropy change of fusion, ΔfusS |
51.36 J/(mol·K) at –47.88 °C |
Std enthalpy change of vaporization, ΔvapH |
35.66 kJ/mol at 139.2 °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 |
–25.4 kJ/mol |
Standard molar entropy, S |
253.80 J/(mol K) |
Enthalpy of combustion, ΔcH |
–4549 kJ/mol |
Heat capacity, cp | 184.5 J/(mol K) at 25 °C |
Gas properties | |
Std enthalpy change of formation, ΔfH |
17.2 kJ/mol |
Standard molar entropy, S |
358.2 J/(mol K) |
Heat capacity, cp | 125.8 J/(mol K) |
van der Waals' constants[5] | a = 3076 L2 kPa/mol2 b = 0.1772 liter per mole |
Vapor pressure of liquid
P in mm Hg | 1 | 10 | 40 | 100 | 400 | 760 | |
T in °C | –6.9 | 28.3 | 55.3 | 76.8 | 116.7 | 139.1 |
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.
Distillation data
See also:
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Spectral data
UV-Vis | |
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λmax | ? nm |
Extinction coefficient, ε | ? |
IR | |
Major absorption bands | ? cm−1 |
NMR | |
Proton NMR | |
Carbon-13 NMR | |
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
- CRC Handbook of Chemistry and Physics, 44th ed. pp 2611–2620
- Lange's Handbook of Chemistry, 10th ed. pp 1661–1663
- Lange's Handbook of Chemistry, 10th ed. pp 1669–1674
- CRC Handbook of Chemistry and Physics, 85th ed. p 8-111
- Lange's Handbook of Chemistry, 10th ed, pp 1522–1524
- "Pure Component Properties" (Queriable Database). Chemical Engineering Research Information Center. Retrieved 28 May 2007.
- "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 28 May 2007.
Linstrom, Peter (1997). "NIST Standard Reference Database". National Institute of Standards and Technology. doi:10.18434/T4D303. {{cite journal}}
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