540-59-0
Product Name:
1,2-DICHLOROETHYLENE
Formula:
C2H2Cl2
Synonyms:
1,2-Dichloroethene in DMSO;1,2-Dichloroethene solution
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 1,2-dichloroethylene, (mixed isomers) appears as a clear colorless liquid with ether-like odor. Mixture of cis and trans isomers. Flashpoint 36 - 43 °F. Denser than water and insoluble in water. Vapors heavier than air. |
|---|---|
| Color/Form | Colorless liquid (usually a mixture of the cis- and trans-isomers) ... |
| Odor | Ethereal, slightly acrid |
| Boiling Point | 118 to 140 °F at 760 mmHg (NTP, 1992) |
| Melting Point | -71 °F (NTP, 1992) |
| Flash Point | 39 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 70 °F (NTP, 1992) |
| Density | 1.27 at 77 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density | 3.34 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 180 to 265 mmHg at 68 °F (NTP, 1992) |
| LogP | log Kow = 1.86 |
| Henry's Law Constant | Henry's Law constant = 4.08X10-3 atm-cu m/mol at 25 °C |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Autoignition Temperature | 860 °F (USCG, 1999) |
| Decomposition | Hazardous decomposition products formed under fire conditions - Carbon oxides, hydrogen chloride gas. |
| Corrosivity | 1,2-Dichloroethylene will attack some forms of plastics, rubber, and coatings. |
| Heat of Combustion | -4847.2 Btu/lb = -2692.9 cal/g = -112.67X10+5 J/kg |
| Heat of Vaporization | 130 Btu/lb = 72 cal/g = 3.0X10+5 J/kg |
| Surface Tension | 24 dynes/cm = 0.024 N/m at 20 °C |
| Ionization Potential | 9.65 eV |
| Polymerization | Hazardous polymerization may occur. Polymerization may be caused by elevated temperature, oxidizing materials, peroxides, or sunlight. Usually contains inhibitors to prevent polymerization. Uninhibited monomer vapor may form polymer in vents and other confined spaces. |
| Odor Threshold | Odor Threshold Low: 0.08 [mmHg] Odor Threshold High: 17.0 [mmHg] Odor threshold from "Quick Guide: The Electronic NIOSH Pocket Guide to Chemical Hazards" |
| Kovats Retention Index | 533 552 552 556 556 |
| Other Experimental Properties | log Kow = 2.00 /average of cis- and trans-isomers/ |
| Chemical Classes | Solvents -> Chlorinated Aliphatics |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H225:Flammable liquids H332:Acute toxicity,inhalation H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P273:Avoid release to the environment. |
COMPUTED DESCRIPTORS
| Molecular Weight | 96.94 g/mol |
|---|---|
| XLogP3 | 1.9 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 95.9533555 g/mol |
| Monoisotopic Mass | 95.9533555 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 4 |
| Formal Charge | 0 |
| Complexity | 19.2 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 1 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
1, 2-Dichloroethene, also called 1, 2-dichloroethylene, is a highly flammable, colorless liquid with a sharp, harsh odor. It is used to produce solvents and in chemical mixtures. You can smell very small amounts of 1, 2-dichloroethene in air (about 17 parts of 1, 2-dichloroethene per million parts of air [17 ppm]). There are two forms of 1, 2-dichloroethene; one is called cis-1, 2-dichloroethene and the other is called trans-1,2-di-chloroethene. Sometimes both forms are present as a mixture.