1,1,1,2-Tetrachloroethane

  • (Chloromethyl)trichloromethane
  • Ethane, 1,1,1,2-tetrachloro-
  • F 130a
  • TCA
  • HCC 130a
Formula
C2H2Cl4
Structure
Description
Clear colorless liquid.
Uses
As solvent, manufacture of insecticides, herbicides, soil fumigants, bleaches, paints & varnishes.

Registry Numbers and Inventories.
CAS
630-20-6
EC (EINECS/ELINCS)
211-135-1
RTECS
KI8450000
RTECS class
Tumorigen; Mutagen; Primary Irritant
UN (DOT)
1702
Beilstein/Gmelin
1733216
Beilstein Reference
4-01-00-00143
RCRA
U208
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C2H2Cl4
Formula mass
167.84
Melting point, °C
-68.1
Boiling point, °C
130.5
Vapor pressure, mmHg
11 (25 C)
Critical temperature
351
Critical pressure
39.7
Density
1.61158 g/cm3 (0 C)
Solubility in water
1 g/L
Viscosity
1.38 cp (25 C)
Surface tension
32.9 g/s2 @ 20 C
Refractive index
1.47907 (20 C)
Partition coefficient, pKow
2.66
Heat of vaporization
45.2 kJ/mol
Heat of combustion
-83784 kJ/mol

Hazards and Protection.
Storage
Store in a coool, dry location, away from incompatible materials. Keep container tightly closed.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear appropriate eye protection and protective clothing to prevent skin and eye contact. Eyewash fountains should be provided in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
If you spill this chemical, FIRST REMOVE ALL SOURCES OF IGNITION. Then, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with 60-70% ethanol followed by washing with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.
Stability
Container may explode in heat of fire.
Incompatibilities
Incompatible with strong oxidizing agents and strong bases Incompatible with dinitrogen tetraoxide, 2,4-dinitrophenyl disulfide, potassium, potassium hydroxide, nitrogen tetraoxide, sodium and sodium potassium alloy May react with chemically active metals, strong caustics, hot iron, aluminum and zinc in presence of steam.
Decomposition
When in contact with flame, incandescent material or red hot metal surfaces, it decomposition to form hydrochloric acid, carbon dioxide and carbon monoxide. When heated to decomposition it emits very toxic fumes of hydrogen chloride.

Fire.
Flash Point,°C
36
Upper exp. limit, %
12.1
Lower exp. limit, %
4.9
Fire fighting
Fires involving this material can be controlled with a dry chemical, carbon dioxide or Halon extinguisher. A water spray may also be used.
Fire potential
Flammable material.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
NIOSH REL: TWA 500 ppm (4170 mg/m3) OSHA PEL: TWA 500 ppm (4170 mg/m3) IDLH 2000 ppm
Exposure effects
Trichloroethane has a rapid anesthetic action. Acute overdoses may cause dizziness, unconsciousness, coma and seizures. Cerebral hypoxia and cerebral edema have been reported.
   Ingestion
Nausea, vomiting, diarrhea, and burns of the esophagus have been noted after large ingestions.
   Inhalation
Respiratory depression and pulmonary edema may be noted following acute exposure.
   Skin
Skin vesiculations and erythema may occur with prolonged contact. Allergic contact dermatitis has been reported.
   Eyes
Contact with eyes will result in superficial and transient the mucous membrane that lines the inner surface of the eyelid and the exposed surface of the eyeballl irritation and hyperemia.

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. Corrosive chemicals will destroy the membranes of the mouth, throat, and esophagus and, in addition, have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. Transport the victim IMMEDIATELY to a hospital.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
1702
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
TEE