371696

Tetrachlorethen

anhydrous, ≥99%

• Synonym(e): Ethylentetrachlorid, PCE
• Lineare Formel: CCl₂=CCl₂
• CAS-Nummer: 127-18-4
• Molekulargewicht: 165.83
• Beilstein: 1361721
• EG-Nummer: 204-825-9
• MDL-Nummer: MFCD00000834
• UNSPSC-Code: 12352101
• PubChem Substanz-ID: 57649708
• NACRES: NA.04
• bp: 121 °C (lit.)

Eigenschaften

• Qualität: anhydrous
• Qualitätsniveau: 100
• Dampfdichte: 5.83 (vs air)
• Dampfdruck: 13 mmHg ( 20 °C); 19 mmHg ( 25 °C)
• Assay: ≥99%
• Form: liquid
• Methode(n): FTIR: suitable
• Verunreinigungen: <0.002% water; <0.005% water (100 mL pkg)
• Abdampfrückstand: <0.0005%
• Brechungsindex: n20/D 1.505 (lit.)
• bp: 121 °C (lit.)
• mp (Schmelzpunkt): −22 °C (lit.)
• Löslichkeit: water: soluble 0.15 g/L at 25 °C
• Dichte: 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
• InChIKey: CYTYCFOTNPOANT-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Tetrachloroethylene (perchloroethylene, PCE), is a chlorinated ethylene compound commonly used as a dry cleaning and degreasing solvent.[1] It shows IR transparency as it has no C–H bonds making it an ideal solvent for IR spectroscopy.[2][3] PCE is a man-made pollutant which is difficult to degrade.[4] It is a ground water contaminant[5] which has adverse effect on human health due to its potential toxicity and carcinogenicity.[6] Some of the methods proposed for its degradation are Fenton oxidation treatment,[7] reductive dehalogenation under methanogenic condition,[6] and reduction using zero valent metal ions.[5] One of the methods reported for its synthesis is from ethylene dichloride and chlorine.[8]

Anwendung

Tetrachloroethylene may be used as a film-forming electrolyte additive in the manufacture of lithium ion batteries.[9] It may also be used as an extractant for the estimation of oil and grease in water by Fourier transform infrared spectroscopy (FT-IR).[2]

Tetrachloroethylene may be used as a starting material in the synthesis of unsym.-heptachloropropane.[10] It may also be used as a solvent in the preparation of 1-chloro-1-(trichloroethenyl)cyclopropane from tetrachlorocyclopropene and ethylene.[11]

Sicherheitshinweise

• Piktogramme: GHS08,GHS07,GHS09
• Signalwort: Warning
• H-Sätze: H315,H317,H319,H336,H351,H411
• P-Sätze: P202 - P273 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Gefahreneinstufungen: Aquatic Chronic 2 - Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
• Zielorgane: Central nervous system
• Lagerklassenschlüssel: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flammpunkt (°F): No data available
• Flammpunkt (°C): No data available
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type ABEK (EN14387) respirator filter