1,2,4,5-Tetramethylbenzene Property

Melting point:

78 °C

Boiling point:

196-197 °C

Density 

0.838 g/mL at 25 °C(lit.)

vapor density 

4.6 (vs air)

vapor pressure 

160 mm Hg ( 140 °C)

refractive index 

1.5093

Flash point:

165 °F

storage temp. 

Flammables area

solubility 

0.00348g/l

Specific Gravity

0.838

color 

White to Almost white

Odor

rancid sweet

Water Solubility 

insoluble

Merck 

14,3468

BRN 

1903393

Henry's Law Constant

2.49 at 25 °C (approximate - calculated from water solubility and vapor pressure)

LogP

4.000

CAS DataBase Reference

95-93-2(CAS DataBase Reference)

NIST Chemistry Reference

Benzene, 1,2,4,5-tetramethyl-(95-93-2)

EPA Substance Registry System

1,2,4,5-Tetramethylbenzene (95-93-2)

Safety

Hazard Codes 

F,N

Risk Statements 

11-53-50

Safety Statements 

16-61

RIDADR 

UN 1325 4.1/PG 2

WGK Germany 

1

RTECS 

DC0500000

TSCA 

Yes

HazardClass 

4.1

PackingGroup 

III

HS Code 

29029080

Toxicity

LD50 orally in Rabbit: 6700 mg/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H228Flammable solid

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

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

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P370+P378In case of fire: Use … for extinction.

1,2,4,5-Tetramethylbenzene Chemical Properties,Usage,Production

Chemical Properties

white to brown semi-transparent crystals

Physical properties

Colorless crystals or scales with a camphor-like odor

Uses

Plasticizers; polymers; fibers; organic synthesis.

Uses

1,2,4,5-Tetramethylbenzene is used in method for reducing odor in room in remodeling work by removing causative substances.

Definition

ChEBI: Durene is a tetramethylbenzene carrying methyl groups at positions 1, 2, 4 and 5.

General Description

Colorless crystals with a camphor-like odor.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as 1,2,4,5-Tetramethylbenzene, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.

Purification Methods

Chromatograph durene on alumina, and recrystallise it from aqueous EtOH or *benzene. Zone-refining removes duroaldehydes. Dry it under vacuum. [Yamauchi et al. J Phys Chem 89 4804 1985.] It has also been sublimed in vacuo [Johnston et al. J Am Chem Soc 109 1291 1987]. [Beilstein 5 H 431, 5 I 207, 5 II 329, 5 III 979, 5 IV 1076.]