Solvents
REACH
Ethylbenzene
CAS Number
100-41-4
EC Number
202-849-4
Abbreviation
EB
What is Ethylbenzene?
Ethylbenzene (CAS 100-41-4), commonly abbreviated as EB, is a high-volume aromatic hydrocarbon produced primarily as an intermediate in petrochemical manufacturing.
Where is Ethylbenzene used?
- Petrochemicals: precursor in styrene monomer production, where EB undergoes catalytic dehydrogenation
- Coatings, adhesives and inks: solvent where aromatic solvency and controlled evaporation rate are required
- Pharmaceuticals: process solvent for active ingredient synthesis and purification steps
- Flavour and fragrance compounding: trace levels contribute a characteristic aromatic profile
- It also functions as a chemical building block.
Commercial specifications
- Standard commercial grades include technical and high-purity specifications
- Purity levels typically ranging from 99% to 99.9%+ for demanding synthesis applications
- Buyers in regulated industries may require documentation aligned with pharmaceutical-grade solvent standards such as USP or Ph. Eur. monographs
Other Names (Synonyms)
alpha-methyltoluene|Benzene, ethyl-|EB
What are the physical properties of Ethylbenzene?
Melting Point -94.9 °C
Boiling Point 136.1 °C
Density 0.8670 g/cm³ @ Temp: 20 °C
Flash Point 72 °F
Appearance Ethylbenzene is a colorless liquid. Pungent aromatic odor. The Odor Threshold is 0.0920.60 ppm
Color Colorless
Odor Aromatic.
Form Liquid
Water Solubility 0.0206 g/100 mL
Vapor Pressure 28.69 psi ( 55 °C)
Refractive Index n 20/D 1.495(lit.)
Log P 3.03-3.6 at 20℃
How is Ethylbenzene classified and handled safely? Learn More
Danger
GHS02· Flammable GHS07· Irritant GHS08· Health Hazard GHS09· Environmental Hazard
Hazard Statements
H225 Highly Flammable liquid and vapor
H303 May be harmful if swallowed
H304 May be fatal if swallowed and enters airways
H315 Causes skin irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
Which trade and regulatory codes apply to Ethylbenzene?
HS Code 29026000
UN Number 1175
ADR Class 3
Packing Group II
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
WGK (Germany) 1