TDCE (trans-1,2 Dichloroethylene)
trans-1,2 Dichloroethylene is a specialty chemical solvent product with unique solvency characteristics and a favorable toxicological profile.
trans-1,2 Dichloroethylene has negligible global warming potential and is not regulated as an Ozone Depleting Chemical in the USA. It is not listed as a Hazardous Air Pollutant, not regulated as a Prop 65 chemical, and not classified as a carcinogen or suspected carcinogen in the USA.
trans-1,2 Dichloroethylene is an EPA SNAP approved solvent in aerosol, electronic, metal and precision cleaning applications. It has also received EPA SNAP approval in some foam blowing formulations.
trans-1,2 Dichloroethylene may be used neat or as a co-solvent in a variety of azeotropic or non-azeotropic* blends. trans-1,2 Dichloroethylene enhances the functionality and economics of a wide array of solvent formulations. trans-1,2 Dichloroethylene solvent enables customized blends based upon end-use requirements. trans-1,2 Dichloroethylene solvent increases the solvency power of many fluoro-fluids.
trans-1,2 Dichloroethylene is an excellent choice as a solvent or solubilizer in many formulations. It is one of the few chlorinated solvents that has not come under attack for environmental or toxicity concerns. While already established as a preferred cosolvent in electronic cleaning applications, trans-1,2 Dichloroethylene is seeing increased usage in vapor degreasing, specialty cleaning products, spot lifters, degreasers, and as an enhancer for many formulations that require a fast evaporating, low odor, low residue solvent. With a KB value greater than 100, small additions of trans-1,2 Dichloroethylene can assist in dissolving materials or acting as a coupling agent in difficult formulations. Although trans-1,2 Dichloroethylene is a VOC, it can be blended with other exempt solvents to provide the performance and cost for many formulations. By utilizing other solvents and propellants, trans-1,2 Dichloroethylene blends can be made to exhibit little or no flammability.
● Description
Molecular formula | C2H2Cl2 |
CAS number | 156-60-5 |
IUPAC name | 1,2-Dichloroethene |
Synomyms | 1,2-Dichloroethylene
1,2-DCE
sym-Dichloroethylene |
● Physical Properties
Molar mass | 96.95 g/mol | |
Appearance | clear liquid[1] | |
Odor | acrid, chloroform-like[1] | |
Density | Z: 1.28 g/cm3 | |
| E: 1.26 g/cm3 | |
Melting point | Z: -81.47 °C | |
| E: -49.44 °C | |
Boiling point | Z: 60.2 °C | |
| E: 48.5 °C | |
Magnetic susceptibility (χ) | -51.0·10−6 cm3/mol (cis) | |
| -48.9·10−6 cm3/mol(trans) | |
Dipole moment | Z: 1.9 D | |
| E: 0 D |
● Characteristics
Although trans-1,2 Dichloroethylene is flammable in its neat form, it does share many of the characteristics that have made other chlorinated solvents popular, including:
▶ Fast Evaporation,
▶ High Solvency, and
▶ Low Residue