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443786

Sigma-Aldrich

Tetrachloroethylene

ACS reagent, ≥99.0%

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Synonym(s):
PCE, Perchloroethylene
Linear Formula:
CCl2=CCl2
CAS Number:
127-18-4
Molecular Weight:
165.83
Beilstein:
1361721
EC Number:
204-825-9
MDL number:
MFCD00000834
UNSPSC Code:
12352101
PubChem Substance ID:
329756502
NACRES:
NA.04

grade

ACS reagent

Quality Level

200

vapor density

5.83 (vs air)

vapor pressure

13 mmHg ( 20 °C)
19 mmHg ( 25 °C)

Assay

≥99.0%

form

liquid

technique(s)

FTIR: suitable

impurities

≤0.05% water

evapn. residue

≤0.0005%

color

APHA: ≤10

refractive index

n20/D 1.505 (lit.)

bp

121 °C (lit.)

mp

−22 °C (lit.)

solubility

water: soluble 0.15 g/L at 25 °C

density

1.623 g/mL at 25 °C (lit.)

SMILES string

Cl\C(Cl)=C(\Cl)Cl

InChI

1S/C2Cl4/c3-1(4)2(5)6

InChI key

CYTYCFOTNPOANT-UHFFFAOYSA-N

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General description

Tetrachloroethylene (perchloroethylene, PCE), is a chlorinated ethylene compound commonly used as a dry cleaning and degreasing solvent. It shows IR transparency as it has no C–H bonds making it an ideal solvent for IR spectroscopy. PCE is a man-made pollutant which is difficult to degrade. It is a ground water contaminant which has adverse effect on human health due to its potential toxicity and carcinogenicity. Some of the methods proposed for its degradation are Fenton oxidation treatment, reductive dehalogenation under methanogenic condition, and reduction using zero valent metal ions. One of the methods reported for its synthesis is by reacting ethylene dichloride and chlorine.

Application

Tetrachloroethylene may be used as a film-forming electrolyte additive in the manufacture of lithium ion batteries. It may also be used as an extractant for the estimation of oil and grease in water by Fourier transform infrared spectroscopy (FT-IR).

Signal Word

Warning

Hazard Classifications

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

Target Organs

Central nervous system

WGK

WGK 3

Flash Point(F)

No data available

Flash Point(C)

No data available

Regulatory Information

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Robert DM and Murphy B.
Chlorinated Solvents: A Forensic Evaluation, 84-85 (2013)
D Ryoo et al.
Nature biotechnology, 18(7), 775-778 (2000-07-11)
Tetrachloroethylene (PCE) is thought to have no natural source, so it is one of the most difficult contaminants to degrade biologically. This common groundwater pollutant was thought completely nonbiodegradable in the presence of oxygen. Here we report that the wastewater
Jenn-Shing Chen et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 60(10), 2287-2293 (2004-07-14)
The dimerization of 2,2-dimethyl-3-ethyl-3-pentanol in tetrachloroethylene in the diluted region has been studied at four temperatures by IR spectroscopy. The aforementioned solute compound is chosen because self-association beyond dimerization is hampered by the steric hindrance generated by the bulky sidechains.
Sorption of trichloroethylene and tetrachloroethylene in a batch reactive metallic iron-water system.
D R Burris et al.
Environmental science & technology, 29(11), 2850-2855 (1995-11-01)
A History of the Production and Use of Carbon Tetrachloride, Tetrachloroethylene, Trichloroethylene and 1, 1, 1-Trichloroethane in the United States: Part 2--Trichloroethylene and 1, 1, 1-Trichloroethane.
Doherty RE.
Environmental Forensics, 1(2), 83-93 (2000)
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