Tetrachloroethylene
CAS Number: 127-18-4
Chemical Formula: C2Cl4
Synonyms: Tetrachloroethylene 99+% for HPLC TETRACHLOROETHYLENE EMPLURA 190 LB TETRACHLOROETHYLENE EMPLURA 25 L
Appearance: Colorless transparent liquid
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Perchloroethylene, also known as tetrachloroethylene, is a colorless liquid with a mild ethereal odor. It is slightly soluble in water and dissolves readily in most organic solvents. It has a broad range of industrial applications, serving as a chemical intermediate, dry cleaning agent for industrial and professional use, surface cleaner for industrial parts, heat transfer fluid, and professional solution for film cleaning and copying. It is also used as an intermediate in manufacturing fluorinated chemicals and for metal degreasing in industrial surface treatment. Occupational exposure may occur in production facilities and industrial sites where it is used as an intermediate.
Chemical Properties
| Item | Specification |
| Melting point | -22 °C (lit.) |
| Boiling point | 121 °C (lit.) |
| density | 1.623 g/mL at 25 °C (lit.) |
| vapor density | 5.83 (vs air) |
| vapor pressure | 13 mm Hg (20 °C) |
| refractive index | n20/D 1.505(lit.) |
| Fp | 120-121°C |
| storage temp. | Store at +2°C to +25°C. |
| solubility | water: soluble 0.15g/L at 25°C |
| form | Liquid |
| color | APHA: ≤10 |
| Odor | chloroform-like odor |
| Odor Threshold | 0.77ppm |
| Water Solubility | Miscible with alcohol, ether, chloroform, benzene and hexane. Slightly miscible with water. |
| FreezingPoint | -22.0℃ |
| λmax | λ: 290 nm Amax: 1.00 λ: 295 nm Amax: 0.30 λ: 300 nm Amax: ≤0.20 λ: 305 nm Amax: 0.10 λ: 350 nm Amax: 0.05 λ: 400 nm Amax: 0.03 |
| Merck | 14,9190 |
| BRN | 1361721 |
| Henry’s Law Constant | 4.97 at 1.8 °C, 15.5 at 21.6 °C, 34.2 at 40.0 °C, 47.0 at 50 °C, 68.9 at 60 °C, 117.0 at 70 °C (EPICS-GC, Shimotori and Arnold, 2003) |
| Dielectric constant | 2.5（21℃） |
| Exposure limits | TLV-TWA 50 ppm (～325 mg/m3) (ACGIH), 100 ppm (MSHA and OSHA); TLV-STEL 200 ppm (ACGIH); carcinogenicity: Animal Limited Evidence. |
| Stability | Stable. Incompatible with strong oxidizing agents, alkali metals, aluminium, strong bases. |
| LogP | 2.53 at 20℃ |
| CAS DataBase Reference | 127-18-4(CAS DataBase Reference) |
| IARC | 2A (Vol. Sup 7, 63, 106) 2014 |
| NIST Chemistry Reference | Tetrachloroethylene(127-18-4) |
| EPA Substance Registry System | Tetrachloroethylene (127-18-4) |
| ECETOC JACC REPORT | Tetrachloroethylene (127-18-4) |
Safety Information
| Item | Specification |
| Hazard Codes | Xn,N,T,F |
| Risk Statements | 40-51/53-23/25-11-39/23/24/25-23/24/25 |
| Safety Statements | 23-36/37-61-45-24-16-7 |
| RIDADR | UN 1897 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | KX3850000 |
| Autoignition Temperature | 260℃ |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29032300 |
| Hazardous Substances Data | 127-18-4(Hazardous Substances Data) |
| Toxicity | LD50 orally in mice: 8.85 g/kg (Dybing); LC for mice in air: 5925 ppm (Lazarew) |
| IDLA | 150 ppm |
Product Application
Tetrachloroethylene, often called perchloroethylene and abbreviated as PCE, PER, or PERC, is a volatile chlorinated organic compound. It is widely used as a solvent in dry cleaning, textile processing, and metal degreasing operations. As an environmental pollutant, it has been detected in air, groundwater, surface water, and soil.
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