1,1-Dichloroethane  |

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Names
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

CAS Number

* 75-34-3 Y

3D model (JSmol)

* Interactive image

ChEMBL |

* ChEMBL45079 Y

ChemSpider |

* 6125 Y

KEGG |

* C18247 Y

PubChem CID

* 6365

UNII |

* 0S989LNA44 Y

InChI

* InChI=1S/C2H4Cl2/c1-2(3)4/h2H,1H3 Y

Key: SCYULBFZEHDVBN-UHFFFAOYSA-N Y

* InChI=1/C2H4Cl2/c1-2(3)4/h2H,1H3

Key: SCYULBFZEHDVBN-UHFFFAOYAY

SMILES

* ClC(Cl)C

Properties

Chemical formula

| 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)

Solubility in water

| 0.6%[1]
Vapor pressure | 182 mmHg (20°C)[1]

Magnetic susceptibility (χ)

| −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).

N verify (what is YN ?)
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.

## Contents

* 1 Safety
* 2 See also
* 3 References
* 4 External links

## Safety

1,1-dichloroethane has been on the California Proposition 65 list of known carcinogens since 1990.[2]

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

## See also

* Dichloroethene
* Dichloroethane

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 NIOSH Pocket Guide to Chemical Hazards. "#0194". National Institute for Occupational Safety and Health (NIOSH). https://www.cdc.gov/niosh/npg/npgd0194.html.
2. ↑ "1,1-Dichloroethane". California Office of Environmental Health Hazard Assessment. https://oehha.ca.gov/proposition-65/chemicals/11-dichloroethane.

## External links

* Dichloroethane and Dichloroethene on members.optushome.com.au
* ATSDR - Toxic Substances Portal
* CDC - NIOSH Pocket Guide to Chemical Hazards

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*[CID]: Compound ID