This page provides supplementary chemical data on o-Xylene.
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 such as eChemPortal, and follow its directions. MSDS is available from MATHESON TRI-GAS, INC. in the SDSdata.org database.
Structure and properties edit
Structure and properties | |
---|---|
Index of refraction,[1] nD | 1.5058 at 20°C |
Abbe number | ? |
Dielectric constant,[2] εr | 2.568 ε0 at 20 °C |
Bond strength | ? |
Bond length | ? |
Bond angle | ? |
Magnetic susceptibility | ? |
Surface tension[3] | 30.10 dyn/cm at 20°C |
Viscosity[4] | 1.1049 mPa·s at 0°C 0.8102 mPa·s at 20°C 0.6270 mPa·s at 40°C 0.4168 mPa·s at 80°C 0.2626 mPa·s at 140°C |
Solubility[5] | 0.171 g/L at 25°C 0.21 g/L at 45°C |
Thermodynamic properties edit
Phase behavior | |
---|---|
Triple point | 247.8 K (−25.3 °C), ? Pa |
Critical point | 631 K (358 °C), 3700 kPa |
Std enthalpy change of fusion, ΔfusH |
13.6 kJ/mol |
Std entropy change of fusion, ΔfusS |
54.87 J/(mol·K) at −25.3 |
Std enthalpy change of vaporization, ΔvapH |
36.24 kJ/mol at 144.5°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 |
−24.4 kJ/mol |
Standard molar entropy, S |
247 J/(mol K) |
Enthalpy of combustion, ΔcH |
−4552 kJ/mol |
Heat capacity, cp | 187.0 J/(mol K) at 25°C |
Gas properties | |
Std enthalpy change of formation, ΔfH |
19.0 kJ/mol |
Standard molar entropy, S |
353.6 J/(mol K) |
Heat capacity, cp | 132.5 J/(mol K) at 25°C |
van der Waals' constants[6] | a = 3038 L2 kPa/mol2 b = 0.1755 liter per mole |
Vapor pressure of liquid edit
P in mm Hg | 1 | 10 | 40 | 100 | 400 | 760 | |
T in °C | −3.8 | 32.1 | 59.5 | 81.3 | 121.7 | 144.4 |
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.
Distillation data edit
See also:
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Spectral data edit
UV-Vis | |
---|---|
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 edit
- ^ Merck Index of Chemicals and Drugs, 9th ed. monograph 9743
- ^ CRC Handbook of Chemistry and Physics, 44th ed. pp 2611–2620
- ^ CRC Handbook of Chemistry and Physics, 44th ed. pp 2244–2248
- ^ Lange's Handbook of Chemistry, 10th ed. pp 1669–1674
- ^ CRC Handbook of Chemistry and Physics, 85th ed. p8-111
- ^ Lange's Handbook of Chemistry, 10th ed, pp 1522–1524
- ^ "Pure Component Properties" (Queriable Database). Chemical Engineering Research Information Center. Retrieved 27 May 2007.
- ^ a b c d "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 27 May 2007.
- Linstrom, Peter (1997). "NIST Standard Reference Database". National Institute of Standards and Technology. doi:10.18434/T4D303.
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