(E)-1,2-Dichloroethene

Basic Information

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CAS Number

156-60-5

Molecular Formula

C2H2Cl2

Molecular Weight

96.94 g/mol

Chemical Classification

Water Treatment Chemicals Disinfectants Chlorine Compounds

Basic Physical Properties

Melting Point

−50 °C

Boiling Point

48°C

Water Solubility

Miscible with ethanol, ethyl ether, acetone, benzene and chloroform. Immiscible with water.

Refractive Index

n20/D 1.446(lit.)

Vapor Pressure

5.16 psi ( 20 °C)

SMILES

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Cl/C=C/Cl

InChI

InChI=1S/C2H2Cl2/c3-1-2-4/h1-2H/b2-1+

InChIKey

KFUSEUYYWQURPO-OWOJBTEDSA-N

LogP

1.9352

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

19.2

Safety Information

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GHS Hazard Pictograms

H225

H332

H412

Hazard Statement

H225 Highly Flammable liquid and vapor
Flammable liquids

H332 Harmful if inhaled
Acute toxicity, inhalation

H412 Harmful to aquatic life with long lasting effects
Hazardous to the aquatic environment, long-term hazard

Hazard Class

Class 3 Class 3

Stability

Incompatible with oxidizing agents, bases. Stable, but may decompose on exposure to air, moisture or light. Highly flammable.

Sensitiveness

Sensitive to light, sensitive to humidity

Explosive Limit

12.8%

Toxicity

LD50 in rats (ml/kg): 1.0 orally; 60 i.p.; in mice (ml/kg): 3.2 i.p. (Freundt)

Synonyms & References

English

trans-1,2-Dichloroethylene
trans-dichloroethylene
trans-1,2-Dichloroethylene (stabilized with MEHQ)
trans-1,2-Dichloroethylen
(E)-1,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,2-Dichloroethene solution
trans-1,2-Dichloroetheneneat
trans-1,2-Dichloroethylene Standard
trans-1,2-Dichloroethylene,stabilized
trans-Acetylene Dichloride (stabilized with MEHQ)
(e)-1,2-dichloroethylene
r1130t
hcc1130t
trans-DCE
trans-1.2-Dich
trans-Dichlorethen
rcrawastenumberu079
1,2-dichloro-ethylen
(E)-1,2-Dichlorethen
2-dichloro-(e)-ethen
2-dichloro- (e)-ethen
(E)-CHCl=CHCl
trans-Acetylene dichloride
1,2-trans-Dichloroethylene
Ethene, 1,2-dichloro-, (1E)-
1,2-Dichloroethylene
Acetylene dichloride
Dioform
Ethene, 1,2-dichloro-, (E)-
1,2-Dichloroethene

MDL Number

MFCD00062942

Customs Code

2903299090

FAQ

What are the physical and chemical properties of (E)-1,2-Dichloroethene (CAS: 156-60-5)?

(E)-1,2-Dichloroethene is a colorless gas with a chloroform-like odor. It has a molecular weight of approximately 98.51 g/mol and is slightly soluble in water but soluble in most organic solvents. It is relatively stable but reactive towards bases and nucleophiles. It has a boiling point of 39.8°C and a melting point of -50°C.

How is (E)-1,2-Dichloroethene (CAS: 156-60-5) typically synthesized?

(E)-1,2-Dichloroethene can be synthesized by the chlorination of acetylene in the presence of a Lewis acid catalyst such as aluminum chloride. The reaction is conducted under anhydrous conditions and at elevated temperatures. The yield is around 80-90%, and the reaction is selective towards the (E)-isomer.

What industries use (E)-1,2-Dichloroethene (CAS: 156-60-5)?

(E)-1,2-Dichloroethene is primarily used in the production of vinyl chloride, which is a key monomer for the synthesis of polyvinyl chloride (PVC). It is also used in the production of various chlorinated compounds and as a solvent in some industrial processes.

What precautions should be taken when handling (E)-1,2-Dichloroethene (CAS: 156-60-5)?

When handling (E)-1,2-Dichloroethene, appropriate personal protective equipment (PPE) such as gloves, goggles, and a respirator should be worn. It should be handled in a well-ventilated area or a fume hood. Spills should be contained and cleaned up using absorbent materials. Proper storage should be in a cool, dry place, away from sources of ignition. Always consult the Safety Data Sheet (SDS) for detailed safety information.