Trichloroethylene
C2HCl3, widely used industrial solvent / From Wikipedia, the free encyclopedia
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Trichloroethylene (TCE) is a halocarbon with the formula C2HCl3, commonly used as an industrial degreasing solvent. It is a clear, colourless, non-flammable, volatile liquid with a chloroform-like pleasant mild smell[4] and sweet taste.[9] Its IUPAC name is trichloroethene. Trichloroethylene has been sold under a variety of trade names. Industrial abbreviations include TCE, 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 is commonly known as chlorothene.
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sample of Trichloroethylene | |||
Names | |||
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Preferred IUPAC name
Trichloroethene | |||
Other names
1-Chloro-2,2-dichloroethylene; 1,1-Dichloro-2-chloroethylene; Acetylene Trichloride; Anamenth; HCO-1120; TCE; Trethylene; Triclene; Tri; Trico; Trilene; Trimar; Terchlorethylene; Chloréthérise (archaic) | |||
Identifiers | |||
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3D model (JSmol) |
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Abbreviations | TCE | ||
ChEBI | |||
ChEMBL | |||
ChemSpider |
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ECHA InfoCard | 100.001.062 | ||
EC Number |
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KEGG |
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PubChem CID |
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RTECS number |
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UNII | |||
UN number | 1710 | ||
CompTox Dashboard (EPA) |
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Properties | |||
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)[1] | ||
Boiling point | 86.7 °C (188.1 °F; 359.8 K)[2] | ||
1.280 g/L[2] | |||
Solubility | Ether, ethanol, chloroform | ||
log P | 2.26[3] | ||
Vapor pressure | 58 mmHg (0.076 atm) at 20 °C[4] | ||
−65.8·10−6 cm3/mol | |||
Refractive index (nD) |
1.4777 at 19.8 °C | ||
Viscosity | 0.532 mPa·s[5] | ||
Pharmacology | |||
N01AB05 (WHO) | |||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
Acute exposure can cause dizziness and loss of consciousness, chronic exposure can increase cancer risk. Unstable in presence of light. | ||
GHS labelling: | |||
NFPA 704 (fire diamond) | |||
420 °C (788 °F; 693 K) | |||
Explosive limits | 8-10.5%[4] | ||
Lethal dose or concentration (LD, LC): | |||
LD50 (median dose) |
4920 mg/kg (oral, rat), 29000 mg/kg (dermal, rabbit)[6] | ||
LC50 (median concentration) |
8450 ppm (mouse, 4 hr) 26300 (rat, 1 hr)[7] | ||
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 (rabbit)[7] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible) |
TWA 100 ppm C 200 ppm 300 ppm (5-minute maximum peak in any 2 hours)[4] | ||
REL (Recommended) |
Ca[4] | ||
IDLH (Immediate danger) |
Ca [1000 ppm][4] | ||
Safety data sheet (SDS) | Carl Roth | ||
Legal status | |||
Related compounds | |||
Related vinyl halides |
Vinyl chloride Tetrachloroethylene Trifluoroethylene | ||
Related compounds |
Chloroform 1,1,1-Trichloroethane 1,1,2-Trichloroethane | ||
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).
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TCE is classified as a volatile organic compound.[9]