Dimension function: Difference between revisions

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<!-- To obtain a blank version of this page, type subst:chembox supplement inside of double curly braces, {{}}, and save the page -->
This page provides supplementary chemical data on [[pyridine]]. <!-- replace with proper wikilink -->
 
== Material Safety Data Sheet == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
 
The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet ([[Material safety data sheet|MSDS]]) for this chemical from a reliable source  such as [http://www2.siri.org/msds/index.php SIRI], and follow its directions. MSDS is available from [https://fscimage.fishersci.com/msds/19990.htm Fisher Scientific].
 
== Structure and properties == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
 
{| border="1" cellspacing="0" cellpadding="3" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;"
! {{chembox header}} | Structure and properties
|-
| [[Index of refraction]], ''n''<sub>D</sub>
| 1.509 at 20°C <!-- Please omit if not applicable -->
|-
| [[Abbe number]]
|? <!-- Please omit if not applicable -->
|-
| [[Dielectric constant]], ε<sub>r</sub>
| 12.3 ε<sub>0</sub> at 25 °C <!-- Please omit if not applicable -->
|-
| [[Bond strength]]
| ? <!-- Specify which bond. Please omit if not applicable -->
|-
| [[Bond length]]
| ? <!-- Specify which bond. Please omit if not applicable -->
|-
| [[Bond angle]]
| ? <!-- Specify which angle, e.g. Cl-P-O. Please omit if not applicable -->
|-
| [[Magnetic susceptibility]]
| ? <!-- Please omit if not applicable -->
|-
| [[Surface tension]]<ref name="lange1661">''Lange's Handbook of Chemistry'', 10th ed. pp 1661-1663</ref>
| 40.8 dyn/cm at 0°C<br>38.0 dyn/cm at 20°C<br>26.4 dyn/cm at 100°C
|-
| [[Viscosity]]<ref name="crc2258">''CRC Handbook of Chemistry and Physics'', 44th ed. pp 2258-2263</ref>
| 0.974 mPa·s at 20°C
|-
|}
 
== Thermodynamic properties == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
 
{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;"
! {{chembox header}} | Phase behavior
|-
| [[Triple point]]
| 231.48 K (–41.67 °C), ? Pa
|-
| [[Critical point (chemistry)|Critical point]]
| 619 K (346 °C), 5660 Pa
|-
| [[Standard enthalpy change of fusion|Std enthalpy change<br/>of fusion]], Δ<sub>fus</sub>''H''<sup><s>o</s></sup>
| 8.28 kJ/mol
|-
| [[Standard entropy change of fusion|Std entropy change<br/>of fusion]], Δ<sub>fus</sub>''S''<sup><s>o</s></sup>
| 35.8 J/(mol·K)
|-
| [[Standard enthalpy change of vaporization|Std enthalpy change<br/>of vaporization]], Δ<sub>vap</sub>''H''<sup><s>o</s></sup>
| 40.2 kJ/mol
|-
| [[Standard entropy change of vaporization|Std entropy change<br/>of vaporization]], Δ<sub>vap</sub>''S''<sup><s>o</s></sup>
| ? J/(mol·K)
|-
! {{chembox header}} | Solid properties
|-
| [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>solid</sub>
| ? kJ/mol
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>solid</sub>
| ? J/(mol K)
|-
| [[Heat capacity]], ''c<sub>p</sub>''
| ? J/(mol K)
|-
! {{chembox header}} | Liquid properties
|-
| [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>liquid</sub>
| 100 kJ/mol
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>liquid</sub>
| 177 J/(mol K)
|-
| [[Enthalpy of combustion]], Δ<sub>c</sub>''H''<sup><s>o</s></sup>
| –2782 kJ/mol
|-
| [[Heat capacity]], ''c<sub>p</sub>''
| 132.72 J/(mol K)
|-
! {{chembox header}} | Gas properties
|-
| [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>gas</sub>
| 140 kJ/mol at 25°C
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>gas</sub>
| ? J/(mol K) at 25°C
|-
| [[Heat capacity]], ''c<sub>p</sub>''<ref name="cheric_p">{{Cite web|url=http://www.cheric.org/research/kdb/hcprop/cmpsrch.php|title=Pure Component Properties|publisher=Chemical Engineering Research Information Center|format=Queriable database|accessdate=20 May 2007}}</ref>
| 157.8 J/(mol K) at 25°C
|-
|}
 
==Vapor pressure of liquid==
{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: white; border-collapse: collapse; border-color: #C0C090;"
|-
| {{chembox header}} | '''P in mm Hg''' || 1 || 10 || 40 || 100 || 400 || 760
|-
| {{chembox header}} | '''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.
 
[[Image:LogPyridineVaporPressure.png|thumb|846px|left|'''log<sub>10</sub> of Pyridine vapor pressure.''' Uses formula: <math>\scriptstyle \log_e P_{mmHg} =</math><math>\scriptstyle \log_e (\frac {760} {101.325}) - 8.907666\log_e(T+273.15) - \frac {7221.386} {T+273.15} + 75.52152 + 5.304278 \times 10^{-06} (T+273.15)^2</math> obtained from CHERIC<ref name="cheric_p"/>]]
{{Clear}}
 
== Spectral data == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
 
{| border="1" cellspacing="0" cellpadding="3" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;"
! {{chembox header}} | [[UV/VIS spectroscopy|UV-Vis]]
|-
| [[Lambda-max|λ<sub>max</sub>]]
| ? [[Nanometre|nm]]
|-
| [[molar absorptivity|Extinction coefficient]], ε
| ?
|-
! {{chembox header}} | [[Infrared|IR]]
|-
| Major absorption bands
| ? cm<sup>&minus;1</sup>
|-
! {{chembox header}} | [[NMR Spectroscopy|NMR]]
|-
| [[Proton NMR]] <!-- Link to image of spectrum -->
| &nbsp;
|-
| [[Carbon-13 NMR]] <!-- Link to image of spectrum -->
| &nbsp;
|-
| Other NMR data <!-- Insert special data e.g. <sup>19</sup>F chem. shifts, omit if not used -->
| &nbsp;
|-
! {{chembox header}} | [[Mass Spectrometry|MS]]
|-
| Masses of <br>main fragments
| &nbsp; <!-- Give list of major fragments -->
|-
|}
 
==References==
{{Reflist}}
* {{Cite web|url=http://webbook.nist.gov/chemistry/|title=NIST Standard Reference Database|accessdate=20 May 2007}}
 
Except where noted otherwise, data relate to [[standard ambient temperature and pressure]].
 
[[wikipedia:Chemical infobox|Disclaimer]] applies.
{{Use dmy dates|date=September 2010}}
 
{{DEFAULTSORT:Pyridine (Data Page)}}
[[Category:Chemical data pages]]
[[Category:Pyridines]]

Revision as of 18:57, 16 June 2013

This page provides supplementary chemical data on pyridine.

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. MSDS is available from Fisher Scientific.

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

Thermodynamic 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, ΔfusHo 		8.28 kJ/mol
Std entropy change
of fusion, ΔfusSo 		35.8 J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo 		40.2 kJ/mol
Std entropy change
of vaporization, ΔvapSo 		? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid 		? kJ/mol
Standard molar entropy,
Sosolid 		? J/(mol K)
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid 		100 kJ/mol
Standard molar entropy,
Soliquid 		177 J/(mol K)
Enthalpy of combustion, ΔcHo –2782 kJ/mol
Heat capacity, cp 132.72 J/(mol K)
Gas properties
Std enthalpy change
of formation, ΔfHogas 		140 kJ/mol at 25°C
Standard molar entropy,
Sogas 		? J/(mol K) at 25°C
Heat capacity, cp[3] 157.8 J/(mol K) at 25°C

Vapor pressure of liquid

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.

log10 of Pyridine vapor pressure. Uses formula: obtained from CHERIC[3]

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Spectral data

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 		 

References

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Except where noted otherwise, data relate to standard ambient temperature and pressure.

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  1. ↑ Lange's Handbook of Chemistry, 10th ed. pp 1661-1663
  2. ↑ CRC Handbook of Chemistry and Physics, 44th ed. pp 2258-2263
  3. ↑ 3.0 3.1 Template:Cite web
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