isobutane
UK[ˌaɪsəʊˈbjuːteɪn]US[ˌaɪsoʊˈbjuːteɪn]
n
a flammable hydrocarbon isomer of butane, used especially as a fuel and a refrigerant.
Morpheme Breakdown
iso
butane
iso
equal
butane
hydrocarbon
Etymology
the term 'isobutane' is a modern chemical compound name constructed from international scientific vocabulary. the prefix 'iso-', derived from greek, signifies 'equal' or 'same', but in organic chemistry it specifically denotes a branched-chain isomer where the carbon skeleton differs from the normal, straight-chain form. the base 'butane' originates from 'butyric acid', found in rancid butter, with the '-ane' suffix identifying it as an alkane. thus, 'isobutane' logically names the isomer of butane with an equal number of atoms but a different, branched molecular structure.
Analysis
Structure: iso (equal) + butane (hydrocarbon)
- iso: from greek 'ísos', meaning 'equal'. in chemistry, it denotes an isomer or a branched-chain structure.
- butane: from 'butyl', a hydrocarbon radical, itself from 'butyric acid', ultimately from latin 'būtyrum' (butter), + the chemical suffix '-ane' denoting a saturated hydrocarbon.
Examples
isobutane is often used as a propellant in aerosol sprays.
the refrigerant blend contained a high percentage of isobutane.
its lower boiling point makes isobutane useful in portable camping stoves.