Butane vs. Methane

Butane
Methane

Butane and methane are hydrocarbons from the same chemical family compounds known as alkanes. They are components of natural gas and extraction of oil.

Comparison chart

Edit this comparison chart

Butane

Methane

PubChem 7843 297
Related compounds Isobutane; Cyclobutane Methanol, chloromethane, formic acid, formaldehyde, silane
ChemSpider 7555 291
Structure and properties n, εr, etc. n, εr, etc.
SMILES CCCC C
Thermodynamic data Phase behaviour Solid, liquid, gas Phase behaviour Solid, liquid, gas
InChI 1/C4H10/c1-3-4-2/h3-4H2,1-2H3 1/CH4/h1H4
Spectral data UV, IR, NMR, MS UV, IR, NMR, MS
Molecular formula C4H10 CH4
Uses Butane is used in refrigeration, cigarette lighters, heating as LPG or liquefied petroleum gas. Methane is an energy source used for heating purposes.
Molar mass 58.12 g mol−1 16.042 g/mol
Harmful effects Butane can cause asphyxiation and ventricular fibrillation. Methane is a potent greenhouse gas. It can form explosive mixtures with air.
Appearance Colorless gas Colorless gas
Sources Crude oil, natural gas. Natural gas fields, biogas production, atmospheric methane, extra terrestrial methane.
Density 2.48 kg/m3, gas (15 °C, 1 atm) 600 kg/m3, liquid (0 °C, 1 atm) 0.717 kg/m3, gas 415 kg/m3 liquid
Melting point −138.4 °C (135.4 K) -182.5 °C, 91 K, -297 °F
Boiling point −0.5 °C (272.6 K) -161.6 °C, 112 K, -259 °F
Solubility in water 6.1 mg/100 ml (20 °C) 35 mg/L (17 °C)
MSDS External MSDS External MSDS
NFPA 704 4 1 0 4 1 0
Flash point −60 °C -188 °C
Explosive limits 1.8 - 8.4% 5 – 15%
CAS number 106-97-8 Y 74-82-8 Y
Related alkanes Propane; Pentane Ethane, propane

Contents: Butane vs Methane

edit Chemical formula and Molecular structure of methane vs butane

Butane is C4H10 while methane has the chemical formula – CH4. Thus there are four hydrogen atoms in a methane molecule while there ten hydrogen atoms in a butane molecule. The molecule of methane forms a tetrahedral structure while butane is a linear structure.

Methane molecule - 3D rendering
Methane molecule - 3D rendering
Methane molecule - structural formula determined using microwave spectroscopy
Methane molecule - structural formula determined using microwave spectroscopy
Butane molecule - 3-dimensional rendering
Butane molecule - 3-dimensional rendering
Butane molecule - chemical formula
Butane molecule - chemical formula

edit Chemical Reactions of methane and butane

Butane reacts with oxygen to form carbon dioxide and water vapor. Under conditions of limited oxygen, butane can form carbon monoxide or charred carbon. It reacts with chlorine to give chlorobutanes and other derivatives. Methane undergoes combustion to give formaldehyde, carbon monoxide and finally carbon dioxide and water vapor. The process is known as pyrolysis.

edit Ease in Handling

Both methane and butane are odorless gases at room temperatures. Butane can be easily liquefied hence it is sold as fuel for camping and cooking. It is mixed with propane and other hydrocarbons to from LPG which is commercially used for heating and cooking purposes. Methane is difficult to transport and is transported by pipelines and LNG carriers.

Unlike methane which is a stubborn gas in normal pressure and temperature, butane turns into a liquid when compressed. This property is attributed to the weak central carbon atom bonds. As soon as this liquefied gas comes in contact with air, it reacts with ignition source and become inflammable.

edit Isomers

Butane exhibits structural isomerism unlike methane and has two isomers, n-butane and iso-butane. Methane does not exhibit isomerism.

edit Uses of methane vs butane

Butane is used in deodorants, cigarette lighters, cooking and heating gas cylinders, propellant in aerosol sprays and refrigerants etc. Methane also known as marsh or swamp gas is used for firing electrical generation stations, power automobiles etc.

edit Sources

Methane is found in wetlands and oceans, atmosphere, human sources like burning fuel, raising livestock, fermentation of organic matter etc. Butane can be obtained as a byproduct during extraction of crude oil and is a component of natural gas.

edit References

Share this comparison:

If you read this far, you should follow us on:

"Butane vs Methane." Diffen.com. Diffen LLC, n.d. Web. 20 Oct 2014. < http://www.diffen.com/difference/Butane_vs_Methane >

Comments: Butane vs Methane

Stay informed Related Comparisons
Follow Diffen
Make Diffen Smarter.

Log in to edit comparisons or create new comparisons in your area of expertise!

Sign up »
Top 5 Comparisons Recently Compared

share

Up next

Oxygen vs. Ozone