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{{Use dmy dates|date=June 2013}}
This page provides supplementary chemical data on [[butane|''n''-butane]].
 
== 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://hazard.com/msds/index.php SIRI], and follow its directions.
 
== 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>
| 1.3326 at 20°C<!-- Please omit if not applicable --><ref>''CRC Handbook of Chemistry and Physics'' 85th ed, pp 202</ref>
|-
| [[Dielectric constant]], ε<sub>r</sub>
| 1.7697 ε<sub>0</sub> at 23°C<!-- Please omit if not applicable --><ref>''CRC Handbook of Chemistry and Physics'' 85th ed, pp 1148</ref>
|-
| [[Symmetry group]]
| C<sub>2h</sub>
|-
| [[Magnetic susceptibility]]
| ? <!-- Please omit if not applicable -->
|-
| [[Surface tension]]
| 12.46 dyn/cm at 20°C<br> &nbsp; &nbsp;''P'' ≈ 225 kPa
|-
|}
 
== 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
|-
| [[Density]] (liquid) 0°C
| 600&nbsp;kg/m³
|-
| [[Density]] (saturated vapor) 1 atm, -0.5°C
| 2.6&nbsp;kg/m³
|-
| [[Triple point]]
| 134.6 K (–138.5 °C), 0.7 Pa
|-
| [[Critical point (thermodynamics)|Critical point]]
| 425.1 K (152.0 °C), 3796.0 kPa
|-
| [[Standard enthalpy change of fusion|Std enthalpy change<br/>of fusion]], Δ<sub>fus</sub>''H''<sup><s>o</s></sup>
| 4.66 kJ/mol
|-
| [[Standard entropy change of fusion|Std entropy change<br/>of fusion]], Δ<sub>fus</sub>''S''<sup><s>o</s></sup>
| 34.56 J/(mol·K)
|-
| [[Standard enthalpy change of vaporization|Std enthalpy change<br/>of vaporization]], Δ<sub>vap</sub>''H''<sup><s>o</s></sup>
| 22.44 kJ/mol
|-
| [[Standard entropy change of vaporization|Std entropy change<br/>of vaporization]], Δ<sub>vap</sub>''S''<sup><s>o</s></sup>
| 82.30 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>
| -147.6 kJ/mol
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>liquid</sub>
| 229.7 J/(mol K)
|-
| [[Heat capacity]], ''c<sub>p</sub>''
| 132.42 J/(mol K) –262°C to –3°C
|-
! {{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>
| –125.6 kJ/mol
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>gas</sub>
| 310.23 J/(mol K)
|-
| [[Enthalpy of combustion]], Δ<sub>c</sub>''H''<sup><s>o</s></sup>
| –2877.5 kJ/mol
|-
| [[Heat capacity]], ''c<sub>p</sub>''
| 98.49 J/(mol K) at 25°C
|-
| ''n''-butane<br>[[van der Waals equation|van der Waals' constants]]<ref name="lange1522">''Lange's Handbook of Chemistry'' 10th ed, pp 1522-1524</ref>
| a = 1466.2 L<sup>2</sup> kPa/mol<sup>2</sup><br> b = 0.1226 liter per mole
|-
|}
 
==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 || 1520 || 3800 || 7600 || 15200 || 30400|| 45600
|-
| {{chembox header}} | '''T in °C''' || –101.5 || –77.8 || –59.1 || –44.2 || –16.3 || –0.5 || 18.8 || 50.0 || 79.5 || 116.0 || &nbsp;— || &nbsp;—
|}
'''''n''-Butane''': Table data obtained from ''CRC Handbook of Chemistry and Physics'' 44th ed.
 
[[Image:logNbutaneVaporPresure.png|thumb|583px|left|'''Vapor pressure of ''n''-butane'''. From formula: <math>\scriptstyle \log_{10} P_{mmHg} = 6.83029 - \frac {945.90} {240.0+T}</math> obtained from ''Lange's Handbook of Chemistry'', 10th ed.]]{{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==
<references/>
*{{Cite web|url=http://www.seminck.be/en/eigenschappen.html|title=Multifunctional Green Alternative: Propane and Butane (properties)|publisher=Seminck|accessdate=1 May 2007}}
<!-- [http://webbook.nist.gov/chemistry/ NIST Standard Reference Database] -->
 
Except where noted otherwise, data relate to [[standard ambient temperature and pressure]].
 
[[wikipedia:Chemical infobox|Disclaimer]] applies.
 
{{DEFAULTSORT:Butane (Data Page)}}
[[Category:Chemical data pages]]

Latest revision as of 21:46, 8 January 2014

30 year-old Entertainer or Range Artist Wesley from Drumheller, really loves vehicle, property developers properties for sale in singapore singapore and horse racing. Finds inspiration by traveling to Works of Antoni Gaudí. This page provides supplementary chemical data on n-butane.

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 1.3326 at 20°C[1]
Dielectric constant, εr 1.7697 ε0 at 23°C[2]
Symmetry group C2h
Magnetic susceptibility ?
Surface tension 12.46 dyn/cm at 20°C
   P ≈ 225 kPa

Thermodynamic properties

Phase behavior
Density (liquid) 0°C 600 kg/m³
Density (saturated vapor) 1 atm, -0.5°C 2.6 kg/m³
Triple point 134.6 K (–138.5 °C), 0.7 Pa
Critical point 425.1 K (152.0 °C), 3796.0 kPa
Std enthalpy change
of fusion, ΔfusHo 		4.66 kJ/mol
Std entropy change
of fusion, ΔfusSo 		34.56 J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo 		22.44 kJ/mol
Std entropy change
of vaporization, ΔvapSo 		82.30 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 		-147.6 kJ/mol
Standard molar entropy,
Soliquid 		229.7 J/(mol K)
Heat capacity, cp 132.42 J/(mol K) –262°C to –3°C
Gas properties
Std enthalpy change
of formation, ΔfHogas 		–125.6 kJ/mol
Standard molar entropy,
Sogas 		310.23 J/(mol K)
Enthalpy of combustion, ΔcHo –2877.5 kJ/mol
Heat capacity, cp 98.49 J/(mol K) at 25°C
n-butane
van der Waals' constants[3] 		a = 1466.2 L2 kPa/mol2
b = 0.1226 liter per mole

Vapor pressure of liquid

P in mm Hg 1 10 40 100 400 760 1520 3800 7600 15200 30400 45600
T in °C –101.5 –77.8 –59.1 –44.2 –16.3 –0.5 18.8 50.0 79.5 116.0  —  —

n-Butane: Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

Vapor pressure of n-butane. From formula: log10PmmHg=6.83029−945.90240.0+T obtained from Lange's Handbook of Chemistry, 10th ed.

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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

  1. ↑ CRC Handbook of Chemistry and Physics 85th ed, pp 202
  2. ↑ CRC Handbook of Chemistry and Physics 85th ed, pp 1148
  3. ↑ Lange's Handbook of Chemistry 10th ed, pp 1522-1524

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

Disclaimer applies.

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