4-METHYLOCTANE Property

Melting point:

-113.2°C

Boiling point:

142 °C

Density 

0.72

vapor pressure 

7 at 25 °C (Wilhoit and Zwolinski, 1971)

refractive index 

n20/D 1.405

Flash point:

20 °C

solubility 

Soluble in acetone, alcohol, benzene, and ether (Weast, 1986)

form 

Oil

color 

Colourless

Water Solubility 

115 μg/kg at 25 °C (shake flask-GLC, Price, 1976)

Henry's Law Constant

10 atm?m³/mol at 25 °C (Mackay and Shiu, 1981)

Dielectric constant

1.97

Exposure limits

ACGIH TLV: TWA for all isomers 200 ppm (adopted).

LogP

5.350 (est)

CAS DataBase Reference

2216-34-4

EPA Substance Registry System

Octane, 4-methyl- (2216-34-4)

Safety

Hazard Codes 

F

Risk Statements 

11

Safety Statements 

16

RIDADR 

1920

HazardClass 

3.1

PackingGroup 

II

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

4-METHYLOCTANE Chemical Properties,Usage,Production

Chemical Properties

Clear, colorless, watery, flammable liquid with a faint hydrocarbon odor resembling gasoline or similarly structured alkanes, e.g., 3-methyloctane.

Uses

Gasoline component; organic synthesis.

Synthesis Reference(s)

Journal of the American Chemical Society, 103, p. 7672, 1981 DOI: 10.1021/ja00415a055

Environmental Fate

Chemical/Physical. Complete combustion of 4-methyloctane in air produces carbon dioxide and water vapor. 4-Methyloctane will not hydrolyze because it does not contain a hydrolyzable functional group.