Products Description
Trans-1,2-dichloroethylene is a colorless, volatile liquid characterized by a slightly pungent odor. It is highly flammable, and its vapor may form explosive mixtures with air. Exposure to open flames or high temperatures may result in combustion or explosion. When heated in air, it may decompose to produce highly toxic phosgene and hydrogen chloride gases. It also reacts vigorously with oxidizing agents and may react with copper or copper alloys to form explosive chloroacetylene.
Chemical Properties
Melting point | −50 °C (lit.) |
Boiling point | 48 °C |
density | 1.26 |
vapor pressure | 5.32 psi ( 20 °C) |
refractive index | 1.45 |
Fp | 2 °C |
storage temp. | Refrigerator |
solubility | Miscible with acetone, ethanol, and ether and very soluble in benzene and chloroform (U.S. EPA, 1985) |
form | clear liquid |
color | Colorless to Almost colorless |
explosive limit | 12.8% |
Water Solubility | Miscible with ethanol, ethyl ether, acetone, benzene and chloroform. Immiscible with water. |
Specific Heat Capacity | Cp(liquid): 1.2 J/(g·K); Cp(gas): 0.69 J/(g·K), at 25℃ |
Merck | 14,92 |
BRN | 1420761 |
Henry's Law Constant | 10.12 at 30 °C (headspace-GC, Sanz et al., 1997) |
Dielectric constant | 2.27 |
Exposure limits | PC-TWA:800 mg/m3 |
Stability: | Incompatible with oxidizing agents, bases. Stable, but may decompose on exposure to air, moisture or light. Highly flammable. |
Major Application | environmental |
InChI | 1S/C2H2Cl2/c3-1-2-4/h1-2H/b2-1+ |
InChIKey | KFUSEUYYWQURPO-OWOJBTEDSA-N |
SMILES | Cl\C=C\Cl |
LogP | 2.06 |
CAS DataBase Reference | 156-60-5(CAS DataBase Reference) |
EPA Substance Registry System | trans-1,2-Dichloroethylene (156-60-5) |
Safety Information
Hazard Codes | F,Xn,T |
Risk Statements | 11-20-52/53-39/23/24/25-23/24/25 |
Safety Statements | 7-16-29-61-45-36/37 |
OEB | A |
OEL | TWA: 200.0 ppm; 790.0 mg/m3 |
RIDADR | UN 1150 |
WGK Germany | 2 |
RTECS | KV9400000 |
TSCA | TSCA listed |
HazardClass | 3 |
PackingGroup | II |
HS Code | 29032990 |
Storage Class | 3 - Flammable liquids |
Hazard Classifications | Acute Tox. 4 Inhalation |
Hazardous Substances Data | 156-60-5(Hazardous Substances Data) |
Toxicity | LD50 in rats (ml/kg): 1.0 orally; 60 i.p.; in mice (ml/kg): 3.2 i.p. (Freundt) |
Product Applications
Compared with cis-1,2-dichloroethylene, trans-1,2-dichloroethylene exhibits lower toxicity and greater chemical reactivity. It is primarily used in industrial applications as an extractant for heat-sensitive substances, a solvent for certain polymeric materials, and a raw material in organic synthesis. Additionally, it serves as a solvent for various substances, including fats, phenols, and camphor, and is used in the production or processing of dyes, fragrances, paints, thermoplastics, and degreasing agents.
