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251402

Sigma-Aldrich

Trichloroethylene

ACS reagent, ≥99.5%

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Synonym(s):
TCE, Trichloroethene
Linear Formula:
ClCH=CCl2
CAS Number:
79-01-6
Molecular Weight:
131.39
Beilstein:
1736782
EC Number:
201-167-4
MDL number:
MFCD00000838
PubChem Substance ID:
329752780
NACRES:
NA.04

grade

ACS reagent

vapor density

4.5 (vs air)

vapor pressure

61 mmHg ( 20 °C)

Assay

≥99.5%

form

liquid

autoignition temp.

770 °F

impurities

Free halogens, passes test
≤0.0001 meq/g Titr. acid
≤0.0003 meq/g Titr. base
≤0.02% water

evapn. residue

≤0.001%

color

APHA: ≤10

refractive index

n20/D 1.476 (lit.)

bp

86.7 °C (lit.)

mp

−84.8 °C (lit.)

density

1.463 g/mL at 25 °C (lit.)

cation traces

heavy metals (as Pb): ≤1 ppm

SMILES string

Cl\C=C(\Cl)Cl

InChI

1S/C2HCl3/c3-1-2(4)5/h1H

InChI key

XSTXAVWGXDQKEL-UHFFFAOYSA-N

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General description

Trichloroethylene (TCE) is a halocarbon commonly used as an industrial chlorinated solvent. It can also be used as an intermediate in the production of other chemicals and refrigerants.

Application

Trichloroethylene can be used:
  • As a solvent in the C- and O-glycosylation reactions of tetrahydropyran acetals and 2-deoxyglucopyranosides to prepare SN2 products.
  • In the chemical industry for the synthesis of polyvinyl chloride, chloroacetic acid, hydrofluorocarbons, pharmaceuticals, insecticides, fungicides, fire retardants, fertilizer, and synthetic rubber.
  • As a starting material in the synthesis of dichloroacetylene.
  • As a reagent in the preparation of alkynic ethers.
  • As a reagent for ethynylation and vinylation process.

Pictograms

Exclamation markHealth hazard
GHS07,GHS08

Signal Word

Danger

Hazard Classifications

Aquatic Chronic 3 - Carc. 1B - Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1B - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

Flash Point(F)

does not flash

Flash Point(C)

does not flash

Regulatory Information

危险化学品

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Reductive dechlorination of trichloroethylene (TCE) in competition with Fe and Mn oxides-observed dynamics in H2-dependent terminal electron accepting processes.
Paul L, et al.
Geomicrobiology Journal (2015)
Eagleson M.
Concise Encyclopedia Chemistry, 332-332 (1994)
T M Vogel et al.
Applied and environmental microbiology, 49(5), 1080-1083 (1985-05-01)
Tetrachloroethylene (PCE) and trichloroethylene (TCE), common industrial solvents, are among the most frequent contaminants found in groundwater supplies. Due to the potential toxicity and carcinogenicity of chlorinated ethylenes, knowledge about their transformation potential is important in evaluating their environmental fate.
Eagleson M.
Concise Encyclopedia Chemistry, 215-215 (1994)
Jane C Caldwell et al.
Environmental health perspectives, 114(9), 1457-1463 (2006-09-13)
Trichloroethylene (TCE) exposure has been associated with increased risk of liver and kidney cancer in both laboratory animal and epidemiologic studies. The U.S. Environmental Protection Agency 2001 draft TCE risk assessment concluded that it is difficult to determine which TCE
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