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
LogP :3.72 at 20℃
CAS DataBase Reference :25340-17-4(CAS DataBase Reference)
EPA Substance Registry System :Diethylbenzene (25340-17-4)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H304 May be fatal if swallowed and enters airways Aspiration hazard Category 1 Danger H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H410 Very toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 1 Warning P273, P391, P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P273 Avoid release to the environment. 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. P331 Do NOT induce vomiting.