Trichloroethylene is a synthetic, light sensitive, volatile, colorless, liquid that is miscible with many non-polar organic solvents. Trichloroethylene is used mainly as a degreaser for metal parts. Upon combustion, it produces irritants and toxic gases. Occupational exposure to trichloroethylene is associated with excess incidences of liver cancer, kidney cancer and non-Hodgkin lymphoma. It is reasonably anticipated to be a human carcinogen.Trichloroethylene appears as a clear colorless volatile liquid having a chloroform-like odor. Denser than water and is slightly soluble in water. Noncombustible. Used as a solvent, fumigant, in the manufacture of other chemicals, and for many other uses.
Physical & Chemical Properties
Molecular FormulaC2HCl3
Density:1.5g/cm³g/cm³
Boiling Point:87℃
Solubility:
Slightly soluble in water; miscible with most organic solvents such as ethanol, diethyl ether, acetone, chloroform, etc.
Molecular Weight:131.4g/mol
Flash Point:
Melting Point:-86℃
Uses
1. Metal Surface Treatment: Degreasing and cleaning of precision metal parts and aerospace components; surface oil removal prior to electroplating and painting (including vapor degreasing).
2. Electronics Industry: Precision cleaning of electronic components and printed circuit boards (PCBs) to remove flux and oil contamination.
3. Organic Synthesis: Intermediate for chemical products such as indigo dye, monochloroacetic acid, tetrachloroethylene, etc.
4. Extraction & Separation: Extraction solvent in the food industry (e.g., decaffeination of coffee) and for spice oleoresins (must comply with food-grade residue standards).
5. Other Applications: Dry cleaning agent, solvent for pesticide formulations, diluent for adhesives and lubricants.
Safety, Security & Risk
Physical Hazards
Vapors are heavier than air.Static electricity may be generated due to flow, agitation, etc.
Chemical Hazards
Contact with hot surfaces or flames may cause decomposition,producing toxic and corrosive fumes of phosgene and hydrogen chloride.Contact with strong alkalis causes decomposition,forming dichloroacetylene, which increases fire hazard.Reacts violently with metal powders,posing fire and explosion hazards.Slowly decomposes under light in the presence of moisture,forming corrosive hydrochloric acid.