Melting point :-93 °C (lit.)
Boiling point :110-111 °C (lit.)
Density :0.865 g/mL at 25 °C (lit.)
vapor density :3.2 (vs air)
vapor pressure :22 mm Hg ( 20 °C)
refractive index :n/D 1.496(lit.)
Flash point :40 °F
storage temp. :0-6°C
pka :40(at 25℃)
form :Liquid
color :Colorless
Specific Gravity :0.865～0.870(20/20℃)(Ph.Eur.)
Odor :Aromatic, benzene-like odor detectable at 0.16 to 37 ppm (mean = 1.6 ppm)
Relative polarity :0.099
explosive limit :7%
Odor Threshold :0.33ppm
Water Solubility :0.5 g/L (20 ºC)
Merck :14,9529
BRN :635760
Henry's Law Constant :1.05 at 40 °C, 1.68 at 50 °C, 2.62 at 60 °C, 3.15 at 70 °C, 3.97 at 80 °C (headspace-GC, Vane et al., 2001)
Exposure limits :TLV-TWA 100 ppm (～375 mg/m³) (ACGIH, NIOSH, and MSHA), 200 ppm (～750 mg/ m3) OSHA; ceiling 300 ppm, peak 500 ppm/ 15 min (OSHA); STEL 150 ppm (ACGIH).
Dielectric constant :2.4（20℃）
LogP :2.73 at 20℃
CAS DataBase Reference :108-88-3(CAS DataBase Reference)
IARC :3 (Vol. 47, 71) 1999
NIST Chemistry Reference :Toluene(108-88-3)
EPA Substance Registry System :Toluene (108-88-3)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501 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 H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501 H373 May cause damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 2 Warning P260, P314, P501 H412 Harmful to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 3 P273, P501
Precautionary statements:	P201 Obtain special instructions before use. P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273 Avoid release to the environment. P302+P352 IF ON SKIN: wash with plenty of soap and water. P308+P313 IF exposed or concerned: Get medical advice/attention.