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1-DODECANETHIOL
ICSC: 0042
Peer-Review Status: 27.10.2004 Validated
Dodecyl mercaptan
Lauryl mercaptan 
CAS #: 112-55-0 RTECS #: JR3155000
EINECS #: 203-984-1
    Formula: C12H25SH
Molecular mass: 202.4

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use powder, AFFF, foam, carbon dioxide. 
EXPLOSION Above 88°C explosive vapour/air mixtures may be formed.  Above 88°C use a closed system and ventilation.   
 
EXPOSURE   STRICT HYGIENE!   
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
PACKAGING & LABELLING
Personal protection: self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Carefully collect remainder.   
EC Classification
 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F1; R0.  Separated from strong oxidants. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV (inhalable fraction): 0.1ppm as TWA; (SEN); (ACGIH 2004).
MAK (not established):. 

Routes of exposure
 

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

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

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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. 
 

NOTES
Do NOT take working clothes home.
Card has been partly updated in April 2005.
See section Explosion. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations