Trichloroethylene

Trichloroethylene
	Sample of trichloroethylene
Names
	Preferred IUPAC name Trichloroethene
	Other names 1-Chloro-2,2-dichloroethylene; 1,1-Dichloro-2-chloroethylene; Acetylene Trichloride; Ethinyl Trichloride; Ethylene Trichloride; Terchlorethylene; Chloréthérise (archaic); Trade names: Algylen; Anamenth; Chlorylene; Gemalgene; Trethylene; Triclene; Trico; Triklone; Trilene; Trimar
Identifiers
CAS Number	79-01-6 ;
3D model (JSmol)	Interactive image; Interactive image; Interactive image;
Abbreviations	TCE, HCO-1120, Tri, Trichlor
ChEBI	CHEBI:16602 ;
ChEMBL	ChEMBL279816 ;
ChemSpider	13837280 ;
ECHA InfoCard	100.001.062
EC Number	201-167-4;
KEGG	C06790 ;
PubChem CID	6575;
RTECS number	KX4550000;
UNII	290YE8AR51 ;
UN number	1710
CompTox Dashboard (EPA)	DTXSID0021383 ;
	InChI InChI=1S/C2HCl3/c3-1-2(4)5/h1H Key: XSTXAVWGXDQKEL-UHFFFAOYSA-N ; InChI=1/C2HCl3/c3-1-2(4)5/h1H;
	SMILES Cl\C=C(/Cl)Cl; Cl\C=C(/Cl)Cl; ClC=C(Cl)Cl;
Properties
Chemical formula	C2HCl3
Molar mass	131.38 g·mol−1
Appearance	Colorless liquid
Odor	pleasant, chloroform-like
Density	1.46 g/cm3 at 20 °C
Melting point	−84.8 °C (−120.6 °F; 188.3 K)
Boiling point	86.7 °C (188.1 °F; 359.8 K)
Solubility in water	1.280 g/L
Solubility	Ether, ethanol, chloroform
log P	2.26
Vapor pressure	58 mmHg (0.076 atm) at 20 °C
Magnetic susceptibility (χ)	−65.8·10−6 cm3/mol
Refractive index (nD)	1.4777 at 19.8 °C
Viscosity	0.532 mPa·s
Pharmacology
ATC code	N01AB05 (WHO)
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Acute exposure can cause dizziness and loss of consciousness, chronic exposure may increase cancer risk. Unstable in presence of sunlight and caustic soda.
	GHS labelling:
Pictograms
NFPA 704 (fire diamond)	2 1 0
Autoignition; temperature	420 °C (788 °F; 693 K)
Explosive limits	8–10.5%
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	7000 mg/kg (oral, human); 4920 mg/kg (oral, rat), 29000 mg/kg (dermal, rabbit)
LC50 (median concentration)	8450 ppm (mouse, 4 hr); 26300 ppm (rat, 1 hr)
LCLo (lowest published)	2900 ppm (human); 37,200 ppm (guinea pig, 40 min); 5952 ppm (cat, 2 hr); 8000 ppm (rat, 4 hr); 11,000 ppm (rabbit)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 100 ppm C 200 ppm 300 ppm (5-minute maximum peak in any 2 hours)
REL (Recommended)	Ca
IDLH (Immediate danger)	Ca [1000 ppm]
Safety data sheet (SDS)	Carl Roth
Legal status	BR: Class B1 (Psychoactive drugs); US: banned for medical use (1977), all use banned (2024);
Related compounds
Related vinyl halides	Vinyl chloride; Tetrachloroethylene; Trifluoroethylene
Related compounds	Chloroform; 1,1,1-Trichloroethane; 1,1,2-Trichloroethane; Chloral
Supplementary data page
	Trichloroethylene (data page)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Trichloroethylene (TCE) is an organochloride with the formula C₂HCl₃, commonly used as an industrial metal-degreasing solvent. It is a clear, colourless, non-flammable, volatile liquid with a chloroform-like pleasant mild smell and sweet taste. Its IUPAC name is trichloroethene. Trichloroethylene has been sold under a variety of trade names. Industrial abbreviations include trichlor, Trike, Tricky and tri. Under the trade names Trimar and Trilene, it was used as a volatile anesthetic and as an inhaled obstetrical analgesic. It should not be confused with the similar 1,1,1-trichloroethane, which was commonly known as chlorothene.