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TRICHLOROMETHANESULFENYL CHLORIDEICSC: 0311
June 2003
CAS #: 594-42-3Trichloromethanesulfenyl chloride
Trichlormethyl sulfur chloride
Thiocarbonyl tetrachloride
Trichloromethyl sulfochloride
Perchloromethyl mercaptan
UN #: 1670
EINECS #: 209-840-4

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

 STRICT HYGIENE!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat. Laboured breathing. Nausea. Vomiting. Convulsions.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal cramps. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: chemical protection suit including self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: I 

STORAGE
Separated from food and feedstuffs. See Chemical Dangers. Well closed. 
PACKAGING
Unbreakable packaging.
Put breakable packaging into closed unbreakable container.
Do not transport with food and feedstuffs.
Marine pollutant. 
TRICHLOROMETHANESULFENYL CHLORIDE ICSC: 0311
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW OILY LIQUID WITH PUNGENT ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes including hydrogen sulfide and sulfur oxides. Decomposes on contact with water. This produces hydrogen chloride, sulfur dioxide and carbon dioxide. Reacts with bases, oxidants and reducing agents. Attacks many metals. 

Formula: CCl4S / CCl3SCl
Molecular mass: 185.9
Boiling point: 147-148°C
Relative density (water = 1): 1.7
Solubility in water: none
Vapour pressure, kPa at 20°C: 0.4
Relative vapour density (air = 1): 6.4  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion. 

Effects of short-term exposure
The substance is severely irritating to the eyes, skin and respiratory tract. Inhalation of high concentrations of the vapour may cause lung oedema. See Notes. Exposure above the OEL could cause death. The effects may be delayed. Medical observation is indicated. 

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: 0.1 ppm as TWA 

ENVIRONMENT
 

NOTES
Environmental effects from the substance have not been investigated adequately.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
The name Perchloromethyl mercaptan is also used for a compound with CAS number 75-70-7 (CCl_3SH). 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations