Isobutane

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Isobutane

Isobutane, also known as methylpropane or 2-methylpropane, is an alkane

Alkane

Alkanes, also known as paraffins, are chemical compounds that consist only of the elements carbon and hydrogen , wherein these atoms are linked together exclusively by single bonds without any cyclic structure ....
, isomer

Isomer

In chemistry, isomers are compounds with the same molecular formula but different structural formulae. Isomers do not necessarily share similar properties unless they also have the same functional groups....
ic with butane

Butane

Butane, also called n-butane, is the unbranched alkane with four carbon atoms, CH3CH2CH2CH3....
. Recent concerns with depletion of the ozone layer

Ozone layer

The ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone . This layer absorbs 93-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth....
by freon

Freon

Freon is DuPont's trade name for its odorless, colorless, nonflammable, and noncorrosive chlorofluorocarbon and hydrochlorofluorocarbon refrigerants, which are used in air conditioning, refrigeration and some automatic fire-fighting systems....
gases have led to increased use of isobutane as a gas for refrigeration

Refrigeration

Refrigeration is the process of removing heat from an enclosed space, or from a substance, and moving it to a place where it is unobjectionable....
systems, especially in domestic refrigerator

Refrigerator

A refrigerator is a cooling appliance comprising a thermal insulation compartment and a heat pump - a mechanism to transfer heat from it to the external environment, cooling the contents to a temperature below ambient....
s and freezers, and as a propellant

Propellant

A propellant is a material that is used to move an object. This will often involve a chemical reaction. It may be a gas, liquid, Plasma , or, before the chemical reaction, a solid....
in aerosol spray

Aerosol spray

Aerosol spray is a type of dispensing system which creates an Particulate mist of liquid particles. This is used with a spray can or bottle that contains a liquid under pressure....
s. When used as a refrigerant

Refrigerant

A refrigerant is a compound used in a heat engine that undergoes a phase change from a gas to a liquid and back. The two main uses of refrigerants are refrigerators/freezers and air conditioners ....
or a propellant, isobutane is also known as R-600a. Some portable camp stoves use a mixture of isobutane with propane

Propane

Propane is a three-carbon alkane, normally a gas, but compressible to a transportable liquid. It is derived from other petroleum products during oil or natural gas processing....
, usually 80:20.

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Encyclopedia

Isobutane, also known as methylpropane or 2-methylpropane, is an alkane

Alkane

Isomer

Butane

Butane, also called n-butane, is the unbranched alkane with four carbon atoms, CH3CH2CH2CH3....
. Recent concerns with depletion of the ozone layer

Ozone layer

Freon

Refrigeration

Refrigeration is the process of removing heat from an enclosed space, or from a substance, and moving it to a place where it is unobjectionable....
systems, especially in domestic refrigerator

Refrigerator

Propellant

Aerosol spray

Refrigerant

Propane

Propane is a three-carbon alkane, normally a gas, but compressible to a transportable liquid. It is derived from other petroleum products during oil or natural gas processing....
, usually 80:20. Isobutane is used as a feedstock in the petrochemical

Petrochemical

Petrochemicals are chemical products made from raw materials of petroleum or other hydrocarbon origin. Although some of the chemical compounds that originate from petroleum may also be derived from coal and natural gas, petroleum is the major source....
industry, for example in the synthesis of isooctane.
Its UN number (for hazardous substances see shipping) is UN 1969. Isobutane is the R group for the amino acid

Amino acid

In chemistry, an amino acid is a molecule containing both amine and carboxyl functional groups. These molecules are particularly important in biochemistry, where this term refers to alpha-amino acids with the general formula H2NCHRCOOH, where R is an organic substituent....
leucine

Leucine

Leucine is an a-amino acid with the chemical formula HO2CCHCH2CH2. It is an essential amino acid, which means that humans cannot synthesise it....
.

Nomenclature

Isobutane is the trivial name retained by the International Union of Pure and Applied Chemistry

International Union of Pure and Applied Chemistry

The International Union of Pure and Applied Chemistry is a non-governmental organization established in 1919 for the advancing of chemistry. Its members are national chemistry societies....
(IUPAC) in its 1993 Recommendations for the Nomenclature of Organic Chemistry.

Methylpropane is the systematic name. The substituent number (2-) is unnecessary because there is no isomer of this molecule with methylpropane as part of its name.

Uses

As a refrigerant
Refrigerant

A refrigerant is a compound used in a heat engine that undergoes a phase change from a gas to a liquid and back. The two main uses of refrigerants are refrigerators/freezers and air conditioners ....
As a propellant for aerosol cans and foam
Foam

The most general definition of foam is a substance that is formed by trapping many gas bubbles in a liquid or solid. It can also refer to anything that is analogous to such a phenomenon, such as quantum foam....
products, such as reddi wip

External links

(online version of the "Blue Book")