Tetrachloroethylene
Chemical Name Tetrachloroethylene
CAS No 127-18-4
Molecular Formula C2Cl4
Molecular weight 165.83
Appearance Colorless transparent liquid
Sample Available
Tetrachloroethylene is a colorless, non-flammable, volatile liquid with a characteristic sweet odor. It is insoluble in water but miscible with most organic solvents. It exhibits high stability, strong solvency, low toxicity, and good drying properties, making it widely used in dry cleaning, metal degreasing, and chemical synthesis.
Parameters
| Property | Value |
| Melting point | -22 °C |
| Boiling point | 121 °C (lit.) |
| density | 1.623 g/mL at 25 °C (lit.) |
| vapor pressure | 19 mm Hg (20 °C) |
| refractive index | n20/D 1.505 (lit.) |
| Fp | None (non-flammable) |
| storage temp. | 2-8°C |
| solubility | Insoluble in water; miscible with organic solvents |
| form | Liquid |
| color | Colorless |
| Odor | Sweet, ethereal |
| Water Solubility | 0.015 g/L (20 °C) |
| Stability | Stable |
| LogP | 3.40 |
| Viscosity | 0.83 mPa·s (20 °C) |
| CAS DataBase Reference | 127-18-4(CAS DataBase Reference) |
| EPA Substance Registry System | Tetrachloroethylene (127-18-4) |
Safety Information
| Item | Value |
| Hazard Codes | T, Xi, N |
| Risk Statements | 40-41-43-51/53 |
| Safety Statements | 23-36/37-45-61 |
| RIDADR | UN 1897 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | KX3850000 |
| HS Code | 29032300 |
| Toxicity | LD50 orally in rat: 3005 mg/kg |
Product Application of Tetrachloroethylene CAS#127-18-4
Tetrachloroethylene is widely used in dry cleaning of textiles, metal degreasing, and as an industrial solvent for fats, oils, waxes, and resins. It also serves as an intermediate in organic synthesis and a heat-transfer medium.
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