Ethylbenzene

Ethylbenzene
Names
	Preferred IUPAC name Ethylbenzene
	Other names Ethylbenzol; Phenylethane; alpha-Methyltoluene; EB
Identifiers
CAS Number	100-41-4 ;
3D model (JSmol)	Interactive image;
Abbreviations	EB
Beilstein Reference	1901871
ChEBI	CHEBI:16101 ;
ChEMBL	ChEMBL371561 ;
ChemSpider	7219 ;
DrugBank	DB01722 ;
ECHA InfoCard	100.002.591
KEGG	C07111 ;
PubChem CID	7500;
RTECS number	DA0700000;
UNII	L5I45M5G0O ;
CompTox Dashboard (EPA)	DTXSID3020596 ;
	InChI InChI=1S/C8H10/c1-2-8-6-4-3-5-7-8/h3-7H,2H2,1H3 Key: YNQLUTRBYVCPMQ-UHFFFAOYSA-N ; InChI=1/C8H10/c1-2-8-6-4-3-5-7-8/h3-7H,2H2,1H3 Key: YNQLUTRBYVCPMQ-UHFFFAOYAM;
	SMILES CCc1ccccc1;
Properties
Chemical formula	C8H10
Molar mass	106.168 g·mol−1
Appearance	colorless liquid
Odor	aromatic
Density	0.8665 g/mL
Melting point	−95 °C (−139 °F; 178 K)
Boiling point	136 °C (277 °F; 409 K)
Solubility in water	0.015 g/100 mL (20 °C)
log P	3.27
Vapor pressure	9.998 mmHg
Magnetic susceptibility (χ)	−77.20·10−6 cm3/mol
Refractive index (nD)	1.495
Viscosity	0.669 cP at 20 °C
Dipole moment	0.58 D
Thermochemistry
Heat capacity (C)	1.726 J/(gK)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Flammable
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H304, H320, H332, H335, H336, H351, H360, H373, H400, H411
Precautionary statements	P201, P202, P210, P233, P240, P241, P242, P243, P260, P261, P264, P271, P273, P280, P281, P301+P310, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P308+P313, P312, P314, P331, P337+P313, P370+P378, P391, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)	2 3 0
Flash point	22.22 °C (72.00 °F; 295.37 K)
Autoignition; temperature	430 °C (806 °F; 703 K)
Explosive limits	1–7.8%
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	5460 mg/kg
LCLo (lowest published)	4000 ppm (rat, 4 hr)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 100 ppm (435 mg/m3)
REL (Recommended)	TWA 100 ppm (435 mg/m3) ST 125 ppm (545 mg/m3)
IDLH (Immediate danger)	800 ppm
Related compounds
Related aromatic; hydrocarbons	styrene, toluene
Related compounds	benzene; ethylcyclohexane
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Ethylbenzene is an organic compound with the formula C₆H₅CH₂CH₃. It is a highly flammable, colorless liquid with an odor similar to that of gasoline. This monocyclic aromatic hydrocarbon is important in the petrochemical industry as a reaction intermediate in the production of styrene, the precursor to polystyrene, a common plastic material. In 2012, more than 99% of ethylbenzene produced was consumed in the production of styrene.