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1-DODECANETHIOLICSC: 0042
October 2004
CAS #: 112-55-0Dodecyl mercaptan
Lauryl mercaptan
EINECS #: 203-984-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Above 88°C explosive vapour/air mixtures may be formed.  NO open flames.  Above 88°C use a closed system and ventilation.  Use powder, AFFF, foam, carbon dioxide.   

 STRICT HYGIENE!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Headache. Nausea. Sore throat.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles 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 Nausea. Vomiting. Headache. Abdominal pain. Diarrhoea.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Carefully collect remainder. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants. 
PACKAGING
 
1-DODECANETHIOL ICSC: 0042
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-PALE YELLOW LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on burning. This produces toxic gases. Reacts with strong oxidants. 

Formula: C12H25SH
Molecular mass: 202.4
Boiling point: 266-285°C
Melting point: -7 - -9°C
Relative density (water = 1): 0.85
Solubility in water: none
Vapour pressure, kPa at 25°C: 0.33
Relative vapour density (air = 1): 7.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.02
Flash point: 88°C o.c. 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. 

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
Repeated or prolonged contact may cause skin sensitization. 


Occupational exposure limits
TLV: 0.1 ppm as TWA; (SEN) 

ENVIRONMENT
 

NOTES
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations