Pyridine_(data_page)
Pyridine (data page)
Chemical data page
This page provides supplementary chemical data on pyridine.
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 Sigma - Aldrich.
More information Structure and properties ...
Structure and properties | |
---|---|
Index of refraction, nD | 1.509 at 20 °C |
Abbe number | ? |
Dielectric constant, εr | 12.3 ε0 at 25 °C |
Bond strength | ? |
Bond length | ? |
Bond angle | ? |
Magnetic susceptibility | ? |
Surface tension[1] | 40.8 dyn/cm at 0 °C 38.0 dyn/cm at 20 °C 26.4 dyn/cm at 100 °C |
Viscosity[2] | 0.974 mPa·s at 20 °C |
Close
More information Phase behavior, Solid properties ...
Phase behavior | |
---|---|
Triple point | 231.48 K (–41.67 °C), ? Pa |
Critical point | 619 K (346 °C), 5660 Pa |
Std enthalpy change of fusion, ΔfusH |
8.28 kJ/mol |
Std entropy change of fusion, ΔfusS |
35.8 J/(mol·K) |
Std enthalpy change of vaporization, ΔvapH |
40.2 kJ/mol |
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 |
100 kJ/mol |
Standard molar entropy, S |
177 J/(mol K) |
Enthalpy of combustion, ΔcH |
–2782 kJ/mol |
Heat capacity, cp | 132.72 J/(mol K) |
Gas properties | |
Std enthalpy change of formation, ΔfH |
140 kJ/mol at 25 °C |
Standard molar entropy, S |
? J/(mol K) at 25 °C |
Heat capacity, cp[3] | 157.8 J/(mol K) at 25 °C |
Close
P in mm Hg | 1 | 10 | 40 | 100 | 400 | 760 | |
T in °C | –18.9 | 13.2 | 38.0 | 57.8 | 95.6 | 115.4 |
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.
More information UV-Vis, IR ...
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 |
|
Close
- Except where noted otherwise, data relate to Standard temperature and pressure.
- Reliability of data general note.
- Lange's Handbook of Chemistry, 10th ed. pp 1661-1663
- CRC Handbook of Chemistry and Physics, 44th ed. pp 2258-2263
- "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 20 May 2007.
- Linstrom, Peter (1997). "NIST Standard Reference Database". National Institute of Standards and Technology. doi:10.18434/T4D303. Retrieved 20 May 2007.
{{cite journal}}
: Cite journal requires|journal=
(help)