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1,1-Dichloroethane 1,1-dichloroethane-3D-vdW.png
CAS number 75-34-3 YesY
PubChem 6365
ChemSpider 6125 YesY
KEGG C18247 YesY
Jmol-3D images Image 1
Molecular formula C2H4Cl2
Molar mass 98.96 g/mol
Density 1.2 g/cm3
Melting point −97 °C (−143 °F; 176 K)
Boiling point 57.2 °C (135.0 °F; 330.3 K)
Related compounds
Related compounds 1,2-Dichloroethane (ethylene dichloride); *1,1-Dichloroethene
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

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.

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.

In the atmosphere, 1,1-dichloroethane decomposes with half-life of 62 days, chiefly by reaction of photolytically produced hydroxyl radicals.


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