1,2-Dichloroethane

1,2-Dichloroethane
Names
	Preferred IUPAC name 1,2-Dichloroethane
	Other names Ethylene dichloride; Ethylene chloride; 1,2-DCA; 1,2-DCE ; DCE; Ethane dichloride; Dutch liquid, Dutch oil; Freon 150
Identifiers
CAS Number	107-06-2 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	605264
ChEBI	CHEBI:27789 ;
ChEMBL	ChEMBL16370 ;
ChemSpider	13837650 ;
DrugBank	DB03733;
ECHA InfoCard	100.003.145
EC Number	203-458-1;
Gmelin Reference	49272
KEGG	C06752 ;
PubChem CID	11;
RTECS number	KI0525000;
UNII	55163IJI47 ;
CompTox Dashboard (EPA)	DTXSID6020438 ;
	InChI InChI=1S/C2H4Cl2/c3-1-2-4/h1-2H2 Key: WSLDOOZREJYCGB-UHFFFAOYSA-N ;
	SMILES ClCCCl;
Properties
Chemical formula	C2H4Cl2
Molar mass	98.95 g·mol−1
Appearance	Colorless liquid
Odor	characteristic, pleasant chloroform-like odor
Density	1.253 g/cm3, liquid
Melting point	−35 °C (−31 °F; 238 K)
Boiling point	84 °C (183 °F; 357 K)
Solubility in water	0.87 g/100 mL (20 °C)
Viscosity	0.84 mPa·s at 20 °C
Structure
Dipole moment	1.80 D
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Toxic, flammable, possibly carcinogenic
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H302, H315, H319, H335, H350
Precautionary statements	P201, P202, P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P281, P301+P312, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P312, P321, P330, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)	2 3 0
Flash point	13 °C (55 °F; 286 K)
Explosive limits	6.2–16%
	Lethal dose or concentration (LD, LC):
LC50 (median concentration)	3000 ppm (guinea pig, 7 h); 1000 ppm (rat, 7 h)
LCLo (lowest published)	1217 ppm (mouse, 2 h); 1000 ppm (rat, 4 h); 3000 ppm (rabbit, 7 h)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 50 ppm C 100 ppm 200 ppm [5-minute maximum peak in any 3 hours]
REL (Recommended)	Ca TWA 1 ppm (4 mg/m3) ST 2 ppm (8 mg/m3)
IDLH (Immediate danger)	Ca [50 ppm]
Related compounds
Related haloalkanes	Methyl chloride; Methylene chloride; 1,1,1-Trichloroethane
Related compounds	Ethylene; 1,1-Dichloroethane; Vinyl chloride
Supplementary data page
	1,2-Dichloroethane (data page)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

The chemical compound 1,2-dichloroethane, commonly known as ethylene dichloride (EDC), is a chlorinated hydrocarbon. It is a colourless liquid with a chloroform-like odour. The most common use of 1,2-dichloroethane is in the production of vinyl chloride, which is used to make polyvinyl chloride (PVC) pipes, furniture and automobile upholstery, wall coverings, housewares, and automobile parts.^[4] 1,2-Dichloroethane is also used generally as an intermediate for other organic chemical compounds, and as a solvent. It forms azeotropes with many other solvents, including water (at a boiling point of 70.5 °C or 158.9 °F or 343.6 K) and other chlorocarbons.^[5]

^ Staff writer. "Standard Abbreviations and Acronyms" (PDF). The Journal of Organic Chemistry. Archived from the original (PDF) on 1 August 2018. Retrieved 19 July 2025. DCE: 1,2-dichloroethane
^ ^a ^b ^c ^d ^e NIOSH Pocket Guide to Chemical Hazards. "#0271". National Institute for Occupational Safety and Health (NIOSH).
^ ^a ^b "Ethylene dichloride". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
^ "Toxic Substances – 1,2-Dichloroethane". ATSDR. Retrieved 23 September 2015.
^ Manfred Rossberg, Wilhelm Lendle, Gerhard Pfleiderer, Adolf Tögel, Eberhard-Ludwig Dreher, Ernst Langer, Heinz Rassaerts, Peter Kleinschmidt, Heinz Strack, Richard Cook, Uwe Beck, Karl-August Lipper, Theodore R. Torkelson, Eckhard Löser, Klaus K. Beutel, Trevor Mann "Chlorinated Hydrocarbons" in Ullmann's Encyclopedia of Industrial Chemistry. 2006, Wiley-VCH, Weinheim. doi:10.1002/14356007.a06_233.pub2.

[1] Staff writer. "Standard Abbreviations and Acronyms" (PDF). The Journal of Organic Chemistry. Archived from the original (PDF) on 1 August 2018. Retrieved 19 July 2025. DCE: 1,2-dichloroethane

[PGCH-2] NIOSH Pocket Guide to Chemical Hazards. "#0271". National Institute for Occupational Safety and Health (NIOSH).

[IDLH-3] "Ethylene dichloride". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[4] "Toxic Substances – 1,2-Dichloroethane". ATSDR. Retrieved 23 September 2015.

[5] Manfred Rossberg, Wilhelm Lendle, Gerhard Pfleiderer, Adolf Tögel, Eberhard-Ludwig Dreher, Ernst Langer, Heinz Rassaerts, Peter Kleinschmidt, Heinz Strack, Richard Cook, Uwe Beck, Karl-August Lipper, Theodore R. Torkelson, Eckhard Löser, Klaus K. Beutel, Trevor Mann "Chlorinated Hydrocarbons" in Ullmann's Encyclopedia of Industrial Chemistry. 2006, Wiley-VCH, Weinheim. doi:10.1002/14356007.a06_233.pub2.

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