Melting point :16 °C(lit.)
Boiling point :214 °C(lit.)
Density :1.454 g/mL at 25 °C(lit.)
vapor density :>6 (vs air)
vapor pressure :1 mm Hg ( 40 °C)
refractive index :n20/D 1.571(lit.)
Flash point :>230 °F
storage temp. :2-8°C
solubility :water: insoluble
form :Liquid
color :Clear
Odor :Characteristic aromatic odor
explosive limit :6.6%, 150°F
Water Solubility :INSOLUBLE
λmax :λ: 308 nm Amax: 1.00
λ: 310 nm Amax: 0.50
λ: 350 nm Amax: 0.05
λ: 375-400 nm Amax: 0.01 Merck :14,9631
BRN :956819
Henry's Law Constant :0.997 at 20.0 °C (wetted-wall column, ten Hulscher et al., 1992) 1.24, 2.27, 2.58, 3.06, and 3.90 at 2.0, 6.0, 10.0, 18.0, and 25.0 °C, respectively (EPICS-SPME, Dewulf et al., 1999)
Exposure limits :NIOSH REL: TWA ceiling 5 ppm (40 mg/m³); ACGIH TLV: ceiling 5 ppm (adopted).
Dielectric constant :2.2400000000000002
Stability :Stable. Incompatible with strong oxidizing agents. Combustible.
LogP :4.28
CAS DataBase Reference :120-82-1(CAS DataBase Reference)
NIST Chemistry Reference :Benzene, 1,2,4-trichloro-(120-82-1)
EPA Substance Registry System :1,2,4-Trichlorobenzene (120-82-1)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 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:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water.