Butane

Butane is an alkane hydrocarbon with the empirical formula C4H10.

It is a flammable, colorless, easily liquefied gas that is used extensively as a fuel for cigarette lighters and portable stoves.

Butane exists as two isomers:

n-butane is a fully hydrogenated linear chain of four carbon atoms: CH3CH2CH2CH3. Its boiling point is -0.6 °C and its melting point is -138.3 °C.

i-butane, or isobutane, has the formula CH3CH(CH3)2, and the systematic name 2-methylpropane. Its boiling point is -0.5 °C and its melting point is -159.6 °C.

Recent concerns with depletion of the ozone layer by freon gases have led to increased use of isobutane as a gas for refrigeration systems, especially in domestic refrigerators and freezers. When used as a refrigerant, isobutane is also known as R600a.



In the News

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Believe It Or Not, More Rain Would Benefit New Orleans, Ecologist Says
In the wake of Hurricane Katrina -- probably the greatest natural disaster in US history -- a leading ecologist says that one of the best things that could happen to New Orleans and the rest of southern Louisiana and Mississippi would be more rain.

Strong Magnetic Fields Aid Severe Depression: New Therapy Has Few Side
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Beach Pollution Is Worst During New And Full Moon
A new study of 60 beaches in Southern California suggests that water pollution varies with the lunar cycle, reaching the highest levels when tides are ebbing during the new and full moon. The findings could help beachgoers and managers better assess the potential risk of swimming. The report appears in the Aug. 1 issue of the American Chemical Society's journal Environmental Science &Technology.

[Odd] A Romanian couple has named their son Yahoo as a sign of gratitu
Daily Libertatea said on Thursday Cornelia and Nonu Dragoman, both from Transylvania, met and decided they were meant for each other following a three-month relationship over the net.They married and had a baby this Christmas, whom they decided to name after one of the worldwide web's most popular portals."We named him Lucian Yahoo after my father and the net, the main beacon of my life,"Cornelia Dragoman was quoted as saying.

'Underground' Tunnels Discovered As Means For Communication Between Im
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A clearer view
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Hot Ice To Lubricate Artificial Joints
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Psychological Needs Of Military Personnel And Their Families Are Incre
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Simulation Reveals How Body Repairs Balance After Damage
Scientists have created a computer simulation that sheds new light on how the nervous system reinvents its communication with muscles after sensory loss. The findings could someday be used to better diagnose and rehabilitate patients with balance problems by retraining their muscles and improving overall balance.


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