Tetrachloroethylene

Packing:50kg,200kg,250kg drum

Specification:  CAS NO.:127-18-4

Appearance: Colorless transparent liquid Assay：99%min by GC IR Identity: conform to standard HNMR： conform to standard carbon spectrum: conform to standard Water by K. F.:0.5% max or as per the customer’s request Loss on drying:0.5% max. or as per the customer’s request

Used mainly in

Organic solvents: widely used for dissolving oils, rubbers, resins, fats, etc.

Dry cleaning agent: widely used in clothing, fur, and fabric dry cleaning.

Metal degreasing solvent: used for cleaning oil stains on metal surfaces.

Fat extractant: used for the extraction of animal and vegetable oils.

Synthetic intermediates: used for the preparation of trichloroethylene, fluorinated organic compounds, polyvinyl chloride (PVC), etc.

Analytical reagents: used as standard substances for chromatographic analysis (such as HPLC, ICP-AES).

Other uses: fire extinguishing agent, smoke screen agent, anthelmintic (historical use), paint remover, desulfurizer, etc

Synthesis lines:

The industrial synthesis of tetrachloroethylene mainly involves the following methods:

1. Direct chlorination of ethylene method

Ethylene and chlorine react in a solvent of 1,2-dichloroethane under FeCl ∝catalysis to produce 1,2-dichloroethane;

Further chlorination produces trichloroethylene and tetrachloroethylene;

The finished product is obtained by distillation, neutralization, and drying.

2. Oxychlorination method

Ethylene and chlorine first add to form 1,2-dichloroethane;

Then, under the action of CuCl ₂/KCl catalyst, chlorine and oxygen are subjected to oxygen chlorination at 425 ℃and 138-207 kPa;

The product is washed with water, dried, and distilled to obtain high-purity tetrachloroethylene.

3. Hydrocarbons oxidation chlorination method

Chlorination pyrolysis of mixed hydrocarbons containing methane, ethane, propylene, etc. at 50-500 ℃;

Generate a chlorinated hydrocarbon mixture and separate it into tetrachloroethylene through distillation.

4. Acetylene method (less commonly used)

Direct chlorination of acetylene can yield tetrachloroethylene, but its industrial application is limited due to the high production of by-products and high cost.