A high-purity aromatic intermediate produced almost entirely to feed downstream styrene manufacture. Its dominant application is as the feedstock for styrene monomer production; it also serves as a solvent for resins and coatings and as a blending component in motor and aviation fuels.
▸Styrene production: Primary feedstock for styrene monomer and downstream polystyrene
▸Industrial solvent: Solvent for resins, paints, and coatings
▸Fuel blending: Component of automotive and aviation fuels
▸Chemical intermediate: Building block for other organic chemicals
Physical Properties
Physical Description
Ethylbenzene appears as a clear colorless liquid with an aromatic odor. Flash point 15 °C. Less dense than water (at 7.2 lb / gal) and insoluble in water. Hence floats on water. Vapors heavier than air. Used as a solvent and to make other chemicals
Appearance
Colorless liquid
Odor
Sweet, gasoline-like odor
Boiling Point
136 °C at 760 mmHg
Melting Point
-95 °C
Flash Point
15.0 °C (15 °C)
Density
Density of saturated vapor-air mixture at 760 mm Hg (air= 1): 1.03 (26 °C); specific dispersion: 174.6
Vapor Density
3.66
Vapor Pressure
10 mmHg at 30 °C; 5 mmHg at 14 °C; 760 mmHg at 136 °C
LogP
log Kow = 3.15
Henry's Law Constant
Henry's Law constant = 7.88X10-3 atm-cu m/mol at 25 °C
Autoignition Temperature
460 °C
Viscosity
0.6 mm²/s at 25 °C
Heat Of Combustion
-17,780 BTU/lb = -9877 cal/g = -413.5X10+5 J/kg
Heat of Vaporization
35.57 kJ/mol at 136.16 °C; 42.24 kJ/mol at 25 °C
Surface Tension
Liquid surface tension: 29.2 dynes/cm = 0.0292 N/m at 20 °C
Ionization Potential
8.76 eV
Odor Threshold
2-2.6 mg/cu m; detection: 0.4 mg/cu m /Purity not specified/
Refractive Index
Index of refraction: 1.4959 at 20 °C/D
Relative Evaporation Rate
It evaporates about 94 times more slowly than ether
Safety & Handling
Full SDS available on request
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
DOT / UN Transport Classification
UN / DOT NumberUN 1175
Hazard Class / DivisionClass 3
Packing GroupII
Proper Shipping NameEthylbenzene
Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
HS / Tariff Classification
🌐Harmonized System (HS) Code — 6-digit international heading
2902.60
Chapter 29
Organic chemicals
Heading 29.02
Internationally harmonized (WCO HS)
Subheading 2902.60
6-digit international code — national tariff line adds further digits
Ethylbenzene (CAS 100-41-4) is an aromatic hydrocarbon supplied for industrial use. Its dominant application is as the feedstock for styrene monomer production; it also serves as a solvent for resins and coatings and as a blending component in motor and aviation fuels.
Frequently Asked Questions
What is ethylbenzene used for?
Ethylbenzene (CAS 100-41-4) is used predominantly as the feedstock for styrene monomer production and downstream polystyrene. It also serves as a solvent for resins, paints, and coatings, as a blending component in automotive and aviation fuels, and as a chemical intermediate.
What is the common name of ethylbenzene?
Ethylbenzene is generally referred to by that name; it is also known as phenylethane or ethylbenzol. It is an aromatic hydrocarbon, C8H10, CAS 100-41-4.
What products contain ethylbenzene?
Industrially it is the precursor to styrene and polystyrene, and it appears as a solvent in resins, paints, and coatings and as a component of motor and aviation fuels. It is supplied as an industrial feedstock and solvent rather than a finished consumer product.
How is ethylbenzene shipped, and what is its UN number?
Ethylbenzene ships under UN 1175 as a flammable liquid. RawSource supplies it in bulk — drums, totes/IBCs, and larger volumes — with CoA and SDS. Refer to the SDS for full transport and handling classification.
What is the cost of bulk ethylbenzene?
Bulk pricing depends on grade, packaging, and volume and tracks aromatics markets. Submit a bulk RFQ with your specification and quantity for a current quote; we do not list spot prices.
Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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