Overview
Trichloroethylene (CAS 79-01-6 ), commonly abbreviated as TCE and sold under trade names such as Trilene and Triclene, is a chlorinated solvent used primarily for degreasing metal surfaces.
Its high solvency power and low flammability make it a preferred choice in precision cleaning and synthesis applications across various industrial manufacturing sectors worldwide.
In metal fabrication and electronics manufacturing, TCE is used in vapor degreasing systems to remove oils, greases, and machining residues from metal components before coating or assembly.
In the plastics and polymers sector, it functions as a reaction medium and chemical building block in the production of polyvinylidene fluoride (PVDF) and other fluoropolymers.
Printing and packaging operations have historically used TCE as a carrier solvent for inks and adhesives requiring fast evaporation and strong substrate penetration.
It also serves as a key feedstock in the synthesis of hydrofluorocarbon refrigerants, particularly HFC-134a, which is essential for modern cooling and refrigeration systems.
Trichloroethylene is supplied as a clear liquid in drums, IBCs, and bulk tanker quantities. Standard commercial grades include technical grade and stabilized grades for vapor degreasing.
Specifications are typically aligned with ISO and ASTM standards relevant to industrial solvent purity requirements to ensure consistent performance in demanding chemical processes.
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Physical Properties
| Melting Point | -84.7 °C |
| Boiling Point | 87.2 °C |
| Density | 1.4642 g/cm³ @ Temp: 20 °C |
| Flash Point | 90°C |
| Appearance | Trichloroethylene, a colorless (often dyed blue), nonflammable, noncorrosive liquid that has the “sweet” odor characteristic of some chlorinated hydrocarbons. The Odor Threshold is 25-50 ppm. |
| Color | Clear colorless |
| Odor | Chloroform-like; ethereal. |
| Form | Liquid |
| Water Solubility | Slightly soluble. 0.11 g/100 mL |
| Vapor Pressure | 61 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.476(lit.) |
| Log P | 2.53 at 20℃ |
Safety & Handling
Danger GHS07 GHS08 GHS09 Hazard Statements H305 May be harmful if swallowed and enters airways H315 Causes skin irritation H317 May cause an allergic skin reaction H319 Causes serious eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H336 May cause drowsiness or dizziness H341 Suspected of causing genetic defects H350 May cause cancer H360 May damage fertility or the unborn child H361 Suspected of damaging fertility or the unborn child H370 Causes damage to organs H372 Causes damage to organs through prolonged or repeated exposure H401 Toxic to aquatic life H402 Harmful to aquatic life H412 Harmful to aquatic life with long lasting effects Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P331 Do NOT induce vomiting. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P332+P317 Get emergency medical help. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29032200 |
| UN Number | 1710 |
| ADR Class | 6.1 |
| Packing Group | III |
| Storage Class | 6.1D - Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 79-01-6
- EC Number
- 201-167-4
- Mol. Weight
- 131.38
- HS Code
- 29032200
- Category
- Pigments & Colorants