2,2,4-Trimethylpentane

It is an important component of gasoline, frequently used in relatively large proportions (around 10%) to increase the knock resistance of fuel.

[2][3] Strictly speaking, if the standard meaning of ‘iso’ is followed, the name isooctane should be reserved for the isomer 2-methylheptane.

[4] Isooctane is produced on a massive scale in the petroleum industry by alkylation of isobutene with isobutane.

This process is conducted in alkylation units in the presence of acid catalysts.

The same test motors, run in the same fashion, using heptane, gave a performance which was standardized as 0 octane.

Skeletal formula of 2,2,4-trimethylpentane
Skeletal formula of 2,2,4-trimethylpentane
Ball and stick model of 2,2,4-trimethylpentane
Ball and stick model of 2,2,4-trimethylpentane
Spacefill model of 2,2,4-trimethylpentane
Spacefill model of 2,2,4-trimethylpentane
NFPA 704 four-colored diamond Health 1: Exposure would cause irritation but only minor residual injury. E.g. turpentine Flammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasoline Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code
Route to 2,2,4-trimethylpentane from isobutene and isobutane