1,1,2,2-Tetrachloroethane
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Names | |||
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IUPAC name
1,1,2,2-Tetrachloroethane
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Other names
s-Tetrachloroethane
Acetylene tetrachloride R-130 TeCA |
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Identifiers | |||
79-34-5 | |||
ChEBI | CHEBI:36026 | ||
ChEMBL | ChEMBL47258 | ||
ChemSpider | 6342 | ||
Jmol 3D model | Interactive image | ||
KEGG | C19534 | ||
PubChem | 6591 | ||
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Properties | |||
C2H2Cl4 | |||
Molar mass | 167.848 g/mol | ||
Appearance | Colorless to pale yellow liquid[2] | ||
Odor | pungent, chloroform-like[2] | ||
Density | 1.59 g/cm3 | ||
Melting point | −44 °C (−47 °F; 229 K) | ||
Boiling point | 146.5 °C (295.7 °F; 419.6 K) | ||
1 g/350 mL | |||
Vapor pressure | 5 mmHg (20°C)[2] | ||
Vapor pressure | {{{value}}} | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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verify (what is ?) | |||
Infobox references | |||
1,1,2,2-Tetrachloroethane is a chlorinated derivative of ethane. It has the highest solvent power of any chlorinated hydrocarbon.[1] As a refrigerant, it is used under the name R-130.
It was once widely used as a solvent and as an intermediate in the industrial production of trichloroethylene, tetrachloroethylene, and 1,2-dichloroethylene.[3] However, 1,1,2,2-tetrachloroethane is no longer used much in the United States due to concerns about its toxicity.[4]
Chronic inhalation exposure in humans results in jaundice and an enlarged liver, headaches, tremors, dizziness, numbness, and drowsiness. The U.S. Environmental Protection Agency has classified it as a Group C possible human carcinogen.[4]
For occupational exposure limits, the Occupational Safety and Health Administration has set a permissible exposure limit for dermal exposures at 5 ppm over an eight-hour time-weighted average. The National Institute for Occupational Safety and Health has a more protective recommended exposure limit for dermal exposures at 1 ppm over an eight-hour time-weighted average.[5]
See also
References
- ↑ 1.0 1.1 Merck Index, 11th Edition, 9125.
- ↑ 2.0 2.1 2.2 Cite error: Invalid
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- ↑ Agency for Toxic Substances and Disease Registry (ATSDR). Toxicological Profile for 1,1,2,2-Tetrachloroethane (Update). U.S. Public Health Service, U.S. Department of Health and Human Services, Atlanta, GA. 1996.
- ↑ 4.0 4.1 Tetrachloroethane at U.S. EPA
- ↑ CDC - NIOSH Pocket Guide to Chemical Hazards