Functional Roles
Industries Served
Physical Properties
physical_description
Ethylbenzene appears as a clear colorless liquid with an aromatic odor. Flash point 59 u00b0F. 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.
color/form
Colorless liquid
odor
Sweet, gasoline-like odor
boiling_point
277.2 u00b0F at 760 mmHg (NTP, 1992)
melting_point
-139 u00b0F (NTP, 1992)
flash_point
15.0 u00b0C (59.0 u00b0F) - closed cup
solubility
For more Solubility (Complete) data for ETHYLBENZENE (8 total), please visit the HSDB record page.
density
Density of saturated vapor-air mixture at 760 mm Hg (air= 1): 1.03 (26 u00b0C); specific dispersion: 174.6
vapor_density
3.66 (NTP, 1992) - Heavier than air; will sink (Relative to Air)
vapor_pressure
10 mmHg at 85.1 u00b0F ; 5 mmHg at 57.0 u00b0F; 760 mmHg at 277.2 u00b0F (NTP, 1992)
logp
log Kow = 3.15
henry's_law_constant
Henry's Law constant = 7.88X10-3 atm-cu m/mol at 25 u00b0C
stability/shelf_life
Stable under recommended storage conditions.
autoignition_temperature
860 u00b0F (USCG, 1999)
decomposition
Hazardous decomposition products formed under fire conditions - Carbon oxides.
viscosity
0.6 mmu00c2u00b2/s at 25 u00b0C
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 u00b0C; 42.24 kJ/mol at 25 u00b0C
surface_tension
Liquid surface tension: 29.2 dynes/cm = 0.0292 N/m at 20 u00b0C
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 u00b0C/D
relative_evaporation_rate
It evaporates about 94 times more slowly than ether
kovats_retention_index
1125
other_experimental_properties
For more Other Experimental Properties (Complete) data for ETHYLBENZENE (10 total), please visit the HSDB record page.
GHS / SDS Safety
Danger
Environmental Hazard
Irritant
Health Hazard
Flammable
- H351: Suspected of causing cancer [Warning Carcinogenicity]
- H320: Causes eye irritation [Warning Serious eye damage/eye irritation]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H304: May be fatal if swallowed and enters airways [Danger Aspiration hazard]
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
- H225: Highly Flammable liquid and vapor [Danger Flammable liquids]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H304 (17.3%): May be fatal if swallowed and enters airways [Danger Aspiration hazard]
- H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H316: Causes mild skin irritation [Warning Skin corrosion/irritation]
- H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure; Narcotic effects]
- H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
- H225 (> 99.9%): Highly Flammable liquid and vapor [Danger Flammable liquids]
- H373 (17.2%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H360: May damage fertility or the unborn child [Danger Reproductive toxicity]
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
- H332 (99.9%): Harmful if inhaled [Warning Acute toxicity, inhalation]
- H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
- H303: May be harmful if swallowed [Warning Acute toxicity, oral]
- H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
Chemical Identity
| CAS Number | 100-41-4 |
| IUPAC Name | ethylbenzene |
| InChI Key | YNQLUTRBYVCPMQ-UHFFFAOYSA-N |
| PubChem CID | 7500 |
| INCI Name | ETHYLBENZENE |
Synonyms & Trade Names
Full Description
Ethylbenzene (CAS 100-41-4) is an aromatic hydrocarbon with the molecular formula C8H10 that functions as a specialty additive providing solvency properties. This flammable liquid with a boiling point of 277.2°F serves critical applications across coatings & construction, industrial manufacturing, and plastics & polymers industries. Ethylbenzene’s solvent characteristics make it essential for formulations requiring effective dissolution and processing capabilities in these industrial sectors.