Diethylbenzene

CAS NO.：25340-17-4
Empirical Formula: C10H14
Molecular Weight: 134.22
MDL number: MFCD00792900
EINECS: 246-874-9
SAFETY DATA SHEET (SDS)
Update Date: 2023-08-28 18:13:45

What is Diethylbenzene?

Chemical properties

Clear colorless to light yellow liquid

The Uses of Diethylbenzene

Diethylbenzene (DEB) can be used to synthesize divinylbenzene (DVB) by dehydrogenation reaction. DVB is used in the production of crosslinked polystyrene. DEB can be also employed as low temperature heat transfer fluid with biphenyls.

General Description

A clear colorless liquid with an aromatic odor. Flash point 140°F. Less dense than water and insoluble in water. Vapors heavier than air.

Air & Water Reactions

Flammable. Insoluble in water.

Reactivity Profile

Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as Diethylbenzene, 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.

Health Hazard

High vapor concentrations produce eye and respiratory tract irritation, dizziness, depression. Liquid irritates and may blister skin, can cause corneal injury to eye.

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Flammability and Explosibility

Non flammable

Chemical Reactivity

Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

Safety Profile

hhldly toxic by ingestion. A skin and eye irritant. Flammable liquid when exposed to heat or flame; can react with oxidizing materials. To fight fire, use CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes. See also ETHYL BENZENE.

Properties of Diethylbenzene

Melting point:	-31°C(lit.)
Boiling point:	180-182 °C (lit.)
Density	0.87 g/mL at 25 °C (lit.)
vapor density	~4.6 (vs air)
vapor pressure	0.99 mm Hg ( 20 °C)
refractive index	n20/D 1.495(lit.)
Flash point:	134 °F
form	Liquid
color	Clear colorless to light yellow
Odor	Characteristic aromatic; like benzene; like toluene,
explosive limit	5%
Water Solubility	INSOLUBLE
BRN	1903396
CAS DataBase Reference	25340-17-4(CAS DataBase Reference)
EPA Substance Registry System	Diethylbenzene (25340-17-4)

Safety information for Diethylbenzene

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07 Health Hazard GHS08 Environment GHS09
GHS Hazard Statements	H226:Flammable liquids H304:Aspiration hazard H315:Skin corrosion/irritation H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P273:Avoid release to the environment. P331:Do NOT induce vomiting. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.