Isooctane

Synonyms

2,4,4-Trimethylpentane; Isobutyltrimethylmethane; Pentane, 2,2,4-trimethyl; 2,2,4-Trimethylpentane; [ChemIDplus] UN1262

Category

Aliphatics, Saturated (<C12)

Description

Colorless liquid with an odor of gasoline; [HSDB]

Sources/Uses

Used in octane analysis of fuels and in spectrophotometric analysis; Also used as a solvent, thinner, and chemical intermediate; [HSDB]

Comments

A skin, eye, and respiratory tract irritant; May cause kidney and liver injury; Inhalation of high concentrations can cause CNS depression; [ICSC] An irritant; In high-dose animal studies, causes liver and kidney injury; [MSDSonline] See "Octane."

Biomedical References

Insufficient data

300 ppm

500 ppm

49.3 mm Hg

Explanatory Notes

Flash point = -12 deg C; [Merck Index] TLV and PEL for all isomers of octane; MAK for all except Trimethylpentane isomers; [Guide to Occupational Exposure Values] VP from ChemIDplus;

may ignite at ambient temp

Acute solvent syndrome

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Diseases

Occupational diseases associated with exposure to this agent:

• Encephalopathy, chronic solvent
• Solvents, acute toxic effect

Processes

Industrial Processes with risk of exposure:

• Painting (Solvents)