Butane (data page)

Last updated

This page provides supplementary chemical data on n-butane.

Contents

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 eChemPortal, and follow its directions.

Structure and properties

Structure and properties
Index of refraction, nD1.3326 at 20 °C [1]
Dielectric constant, εr1.7697 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 °C600 kg/m³
Density (saturated vapor) 1 atm, -0.5 °C2.6 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, cp132.42 J/(mol K) –262 °C to –3 °C
Gas properties
Std enthalpy change
of formation, ΔfHogas		–124.7 kJ/mol
Standard molar entropy,
Sogas		310.23 J/(mol K)
Enthalpy of combustion, ΔcHo–2877.5 kJ/mol
Heat capacity, cp98.49 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
The data about butane density over a range of temperature [-50; +50] degC Propane butane liquid vapor density zivenko.png
The data about butane density over a range of temperature [−50; +50] °C

Vapor pressure of liquid

P in mm Hg11040100400760152038007600152003040045600
T in °C–101.5–77.8–59.1–44.2–16.3–0.518.850.079.5116.0 — —

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

Vapor pressure of n-butane. From formula: log 10 [?] P m m H g = 6.83029 - 945.90 240.0 + T {\displaystyle \scriptstyle \log _{10}P_{mmHg}=6.83029-{\frac {945.90}{240.0+T}}} obtained from Lange's Handbook of Chemistry, 10th ed. LogNbutaneVaporPresure.png
Vapor pressure of n-butane. From formula: obtained from Lange's Handbook of Chemistry, 10th ed.

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		 

Related Research Articles

This page provides supplementary chemical data on acetic acid.

This page provides supplementary chemical data on acetone.

This page provides supplementary chemical data on methanol.

This page provides supplementary chemical data on carbon dioxide.

Please find below supplementary chemical data about dichloromethane.

<span class="mw-page-title-main">Butyraldehyde</span> Chemical compound

Butyraldehyde, also known as butanal, is an organic compound with the formula CH3(CH2)2CHO. This compound is the aldehyde derivative of butane. It is a colorless flammable liquid with an unpleasant smell. It is miscible with most organic solvents.

This page provides supplementary chemical data on n-pentane.

This page provides supplementary chemical data on calcium hydroxide.

This page provides supplementary chemical data on p-xylene.

This page provides supplementary chemical data on diethyl ether.

This page provides supplementary chemical data on chloroform.

This page provides supplementary chemical data on carbon tetrachloride.

This page provides supplementary chemical data on 1-Propanol (n-propanol).

This page provides supplementary chemical data on carbon disulfide.

This page provides supplementary chemical data on pyridine.

This page provides supplementary chemical data on n-hexane.

This page provides supplementary chemical data on o-Xylene.

This page provides supplementary chemical data on m-Xylene.

This page provides supplementary chemical data on chloromethane.

This page provides supplementary chemical data on trichloroethylene.

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
  4. ↑ Zivenko, Oleksiy (2019). "LPG Accounting Specificity During ITS Storage and Transportation". Measuring Equipment and Metrology. 80 (3): 21–27. doi: 10.23939/istcmtm2019.03.021 . ISSN   0368-6418. S2CID   211776025.
  This box:
  
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.