3,3-Dimethylpentane Property

Melting point:

-135 °C (lit.)

Boiling point:

86 °C (lit.)

Density 

0.693 g/mL at 25 °C (lit.)

vapor pressure 

2.77 psi ( 37.7 °C)

refractive index 

n20/D 1.392(lit.)

Flash point:

20 °F

storage temp. 

Flammables area

solubility 

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

form 

Liquid

pka

>14 (Schwarzenbach et al., 1993)

color 

Clear colorless

explosive limit

~7%

Water Solubility 

Soluble in acetone, water, chloroform, alcohol & ether. In water ( 5.92 mg/kg ) dissolves at 25°C.

BRN 

1696854

Henry's Law Constant

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

Exposure limits

ACGIH: TWA 400 ppm; STEL 500 ppm

Dielectric constant

1.9399999999999999

EPA Substance Registry System

Pentane, 3,3-dimethyl- (562-49-2)

Safety

Hazard Codes 

F,Xn,N

Risk Statements 

11-38-50/53-65-67

Safety Statements 

9-16-29-33-60-61-62

RIDADR 

UN 3295 3/PG 2

WGK Germany 

2

TSCA 

Yes

HazardClass 

3

PackingGroup 

II

HS Code 

29011000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H336May cause drowsiness or dizziness

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P273Avoid release to the environment.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P331Do NOT induce vomiting.

3,3-Dimethylpentane Chemical Properties,Usage,Production

Chemical Properties

clear colorless liquid

Physical properties

Colorless, mobile liquid with an odor resembling heptane or gasoline. Evaporates when spilled forming combustible vapors.

Uses

3,3-Dimethylpentane Is used in organic synthesis & as gasoline component, as Pharmaceutical intermediates. It was used in the development and evaluation of the epiocular-eye irritation test.

General Description

3,3-Dimethylpentane isomerizes via a methyl shift mechanism on oxygen-exposed tungsten carbides.

Environmental Fate

Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. 3,3- Dimethylbutane will not hydrolyze because it has no hydrolyzable functional group.