1,1-Dichloroethane
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1,1-Dichloroethane is a chlorinated hydrocarbon. It is a colorless oily liquid with a chloroform-like odor. It is not easily soluble in water, but miscible with most organic solvents.
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Names | |||
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Preferred IUPAC name
1,1-Dichloroethane | |||
Other names
Ethylidene dichloride Ethylidene chloride CFC-150a 1,1-DCA Asymmetrical dichloroethane 1,1-Ethylidene dichloride Asymmetric dichloroethane | |||
Identifiers | |||
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3D model (JSmol) |
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ChEMBL | |||
ChemSpider |
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ECHA InfoCard | 100.000.785 | ||
KEGG |
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PubChem CID |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
C2H4Cl2 | |||
Molar mass | 98.96 g/mol | ||
Appearance | colorless, oily liquid[1] | ||
Odor | chloroform-like[1] | ||
Density | 1.2 g/cm3 | ||
Melting point | −97 °C (−143 °F; 176 K) | ||
Boiling point | 57.2 °C (135.0 °F; 330.3 K) | ||
0.6%[1] | |||
Vapor pressure | 182 mmHg (20°C)[1] | ||
−57.4·10−6 cm3/mol | |||
Hazards | |||
Flash point | −17 °C; 2 °F; 256 K[1] | ||
Explosive limits | 5.4–11.4%[1] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible) |
TWA 100 ppm (400 mg/m3)[1] | ||
REL (Recommended) |
TWA 100 ppm (400 mg/m3)[1] | ||
IDLH (Immediate danger) |
3000 ppm[1] | ||
Related compounds | |||
Related compounds |
1,2-Dichloroethane (ethylene dichloride); *1,1-Dichloroethene | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Large volumes of 1,1-dichloroethane are manufactured, with annual production exceeding 1 million pounds in the United States. It is mainly used as a feedstock in chemical synthesis, chiefly of 1,1,1-trichloroethane. It is also used as a solvent for plastics, oils and fats, as a degreaser, as a fumigant in insecticide sprays, in halon fire extinguishers, and in cementing of rubber. It is used in manufacturing of high-vacuum resistant rubber and for extraction of temperature-sensitive substances. Thermal cracking at 400–500 °C and 10 MPa yields vinyl chloride. In the past, 1,1-dichloroethane was used as a surgical inhalational anesthetic.