25322-20-7

IUPAC Name:1,1,1,2-tetrachloroethane; 1,1,2,2-tetrachloroethane
Synonyms: Tetrachloroethanes.;Tetrachloroethane (mixed isomers)
CAS: 25322-20-7
Molecular Formula: C₂H₂Cl₄
Molecular Weight: 335.6986
Molecular Struture:  
Mol File: 25322-20-7.mol
Flash Point: 42.6 °C 
Enthalpy of Vaporization: 37.64 kJ/mol 
Boiling Point: 142 °C at 760 mmHg
Vapour Pressure: 7.14 mmHg at 25°C  
Appearance:  Tetrachloroethane (25322-20-7) is a colorless dense liquid with a sweet chloroform-like odor.

 Tetrachloroethane (25322-20-7) is used as a solvent, insecticide and in paint removers.

Reported in EPA TSCA Inventory.

Poison by ingestion and inhalation. Moderately toxic by intraperitoneal route. Mildly toxic by skin contact. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Cl⁻. See also CHLORINATED HYDROCARBONS, ALIPHATIC.
Irritated skin, eyes and mucous membranes.

NIOSH REL: (Tetrachloroethane) Reduce to lowest feasible level
DOT Classification:  6.1; Label: Poison

Air & Water Reactions
No rapid reaction with air. No rapid reaction with water.
Fire Hazard
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Containers may explode when heated. Runoff may pollute waterways. (ERG, 2008)
Health Hazard
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. (ERG, 2008)
Reactivity Profile
Halogenated aliphatic compounds, such as Tetrachloroethane (25322-20-7) , are moderately or very reactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. Materials in this group may be incompatible with strong oxidizing and reducing agents. Also, they may be incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. Decomposed by heat and UV light, forming phosgene and HCl; reacts violently with finely dispersed metals. [Handling Chemicals Safely 1980. p. 886]. 
Firefighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Use foam, dry chemical, or carbon dioxide. Apply water from as far a distance as possible. Keep run-off water out of sewers and water sources. (AAR, 2003)
Non-Fire Response
Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. (AAR, 2003)
Protective Clothing
Avoid breathing vapors. Keep upwind. Do not handle broken packages unless wearing appropriate personal protective equipment. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. (AAR, 2003)