Melting point :-43 °C
Boiling point :184 °C(lit.)
Density :0.862 g/mL at 25 °C(lit.)
vapor density :>1 (vs air)
vapor pressure :0.99 mm Hg ( 20 °C)
refractive index :n20/D 1.495(lit.)
Flash point :134 °F
storage temp. :Store below +30°C.
solubility :24.8mg/l
form :Liquid
color :Clear colorless
explosive limit :0.8%(V)
Odor Threshold :0.00039ppm
Water Solubility :It is insoluble in water. But soluble in ethanol, benzene,carbon tetrachloride.
BRN :1903396
LogP :4.06 at 25℃
CAS DataBase Reference :105-05-5(CAS DataBase Reference)
EPA Substance Registry System :p-Diethylbenzene (105-05-5)

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 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310 H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P331 Do NOT induce vomiting.