Molecular Formula | C2Cl4 |
Molar Mass | 165.83 |
Density | 1.623 g/mL at 25 °C (lit.) |
Melting Point | -22 °C (lit.) |
Boling Point | 121 °C (lit.) |
Flash Point | 120-121°C |
Water Solubility | Miscible with alcohol, ether, chloroform, benzene and hexane. Slightly miscible with water. |
Solubility | water: soluble0.15g/L at 25°C |
Vapor Presure | 13 mm Hg ( 20 °C) |
Vapor Density | 5.83 (vs air) |
Appearance | Liquid |
Color | APHA: ≤10 |
Odor | chloroform-like odor |
Exposure Limit | TLV-TWA 50 ppm (~325 mg/m3) (ACGIH),100 ppm (MSHA and OSHA); TLV-STEL200 ppm (ACGIH); carcinogenicity: AnimalLimited Evidence. |
Maximum wavelength(λmax) | λ: 290 nm Amax: 1.00λ: 295 nm Amax: 0.30λ: 300 nm Amax: ≤0.20λ: 305 nm Amax: 0.10λ: 350 nm Amax: 0.0 |
Merck | 14,9190 |
BRN | 1361721 |
Storage Condition | Store at +2°C to +25°C. |
Stability | Stable. Incompatible with strong oxidizing agents, alkali metals, aluminium, strong bases. |
Refractive Index | n20/D 1.505(lit.) |
Physical and Chemical Properties | Colorless transparent liquid, with ether-like odor. boiling point 121 ℃ freezing point -22.0 ℃ relative density 1.6227 refractive index 1.50547 solubility: Solubility: Dissolution of various substances (such as rubber, resin, fat, aluminum chloride, sulfur, iodine, mercury chloride). With ethanol, ether, chloroform, benzene miscibility. Dissolve in about 10000 times the volume of water. |
Use | Used as organic solvent, dry cleaning agent, desulfurization agent and fabric finishing agent |
Risk Codes | R40 - Limited evidence of a carcinogenic effect R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R23/25 - Toxic by inhalation and if swallowed. R11 - Highly Flammable R39/23/24/25 - R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
Safety Description | S23 - Do not breathe vapour. S36/37 - Wear suitable protective clothing and gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24 - Avoid contact with skin. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
UN IDs | UN 1897 6.1/PG 3 |
WGK Germany | 3 |
RTECS | KX3850000 |
TSCA | Yes |
HS Code | 29032300 |
Hazard Class | 6.1 |
Packing Group | III |
Toxicity | LD50 orally in mice: 8.85 g/kg (Dybing); LC for mice in air: 5925 ppm (Lazarew) |
Raw Materials | Chlorine Trichloroethylene Trichloroethylene |
Downstream Products | hexachloroethane Perchlorethylene |
This method can produce trichloroethylene and tetrachloroethylene, divided into the following two methods.
A mixture of hydrocarbons containing methane, ethane, propane, propylene and the like is chlorinated and pyrolyzed at 50~500 ° C. To obtain a mixture of chlorinated hydrocarbons, which is fractionated and separated into various products.
acetylene and chlorine are heated and chlorinated to produce 1,1,2,2 tetrachloroethane, and trichloroethylene is obtained by dehydrochlorination with alkali, pentachloroethane is generated by chlorination, and then Tetrachloroethylene is obtained by dehydrochlorination with alkali. Due to the high price of acetylene, has been gradually replaced by the ethylene method.
can be used as a solvent, dry cleaning agent, animal and vegetable oil extractant, fire extinguishing agent and smoke agent. It can also be used for the synthesis of trichloroacetic acid and fluorine-containing organic compounds.
toxic, is a central nervous system inhibitors, inhalation, swallowing or absorption through the skin can cause a strong harm, such as Head Pain, trembling, Vomit, severe loss of consciousness in the end to death. Irritating to the eyes and skin. Contact should be immediately washed with water. The maximum allowable concentration in air is 100 × 10-6. Operators exposed to higher concentrations of tetrachloroethylene should wear gas masks and protective gloves. Its packaging and storage see trichloroethylene.