2,2,4-Trimethylpentane

Chemical Formula:

C₈H₁₈

CAS Number:

540-84-1

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2,2,4-Trimethylpentane

Chemical Formula:

C₈H₁₈

CAS Number:

540-84-1

2,2,4-Trimethylpentane, commonly known as Isooctane, is a branched-chain alkane hydrocarbon. It is a colorless, flammable liquid with a characteristic gasoline-like odor. Isooctane is best known as the standard reference fuel in octane rating, used to define the resistance of gasoline to knocking in internal combustion engines. It also serves as a solvent and intermediate in organic synthesis.

Characteristics

Molar Weight

114.23 g/mol

Melting Point

−107 °C

Boiling Point

99 °C

Solubility

Insoluble in water; soluble in organic solvents

Density

0.692 g/cm³ (20 °C)

Forms

Clear, colorless liquid

Odor

Gasoline-like odor

USES AND APPLICATIONS

Key applications

Used as a reference standard in octane rating of fuels.
Applied as a blending component in gasoline.
Serves as a solvent in laboratory and industrial processes.
Used in organic synthesis as an intermediate.
Employed in research and development of fuels.

Industries

Petrochemicals
Automotive
Fuels and Energy
Chemical Research
Industrial Solvents

Synonyms

Isooctane, TMP, 2,2,4-TMP, 2,2,4-Trimethyl-4-methylpentane (common naming confusion)

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