Melting point :-31 °C (lit.)
Boiling point :145-146 °C (lit.)
Density :0.906 g/mL at 25 °C
vapor density :3.6 (vs air)
vapor pressure :12.4 mm Hg ( 37.7 °C)
refractive index :n20/D 1.546(lit.)
Flash point :88 °F
storage temp. :Store at <= 20°C.
solubility :0.24g/l
form :Liquid
pka :>14 (Schwarzenbach et al., 1993)
Specific Gravity :0.909
color :Colorless
Odor :at 0.10 % in triacetin. sweet balsam floral plastic
Odor Type :balsamic
Odor Threshold :0.035ppm
explosive limit :1.1-8.9%(V)
Water Solubility :0.3 g/L (20 ºC)
FreezingPoint :-30.6℃
Sensitive :Air Sensitive
Merck :14,8860
BRN :1071236
Henry's Law Constant :(x 10^-3 atm?m³/mol): 3.91 at 25 °C (static headspace-GC, Welke et al., 1998)
Dielectric constant :2.4（25℃）
Exposure limits :TLV-TWA 50 ppm (～212 mg/m³) (ACGIH and NIOSH), 100 ppm (～425 mg/m³) (OSHA and MSHA); ceiling 200 ppm, peak 600 ppm/5 min/3 h (OSHA); STEL 100 ppm （～425 mg/m³) (ACGIH).
Stability :Stable, but may polymerize upon exposure to light. Normally shipped with a dissolved inhibitor. Substances to be avoided include strong acids, aluminium chloride, strong oxidizing agents, copper, copper alloys, metallic salts, polymerization catalysts and accelerators. Flammable - vapour may travel considerable distance to ignition source
InChIKey :PPBRXRYQALVLMV-UHFFFAOYSA-N
LogP :2.96 at 25℃
CAS DataBase Reference :100-42-5(CAS DataBase Reference)
IARC :2A (Vol. 60, 82, 121) 2019
NIST Chemistry Reference :Styrene(100-42-5)
EPA Substance Registry System :Styrene (100-42-5)

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 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning H361 Suspected of damaging fertility or the unborn child Reproductive toxicity Category 2 Warning P201, P202, P281, P308+P313, P405,P501 H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure Category 1 Danger P260, P264, P270, 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:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 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.