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1-PROPANETHIOL
ICSC: 1492
Peer-Review Status: 05.04.2006 Validated
1-Mercaptopropane
Propane-1-thiol
n-Propyl mercaptan 
CAS #: 107-03-9 RTECS #: TZ7300000
UN #: 2402
EINECS #: 203-455-5
    Formula: C3H8S / CH3(CH2)2SH
Molecular mass: 76.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire. Heating will cause rise in pressure with risk of bursting.  NO open flames, NO sparks and NO smoking.  Use powder, foam, carbon dioxide. 
EXPLOSION Vapour/air mixtures are explosive. Vapour/air mixtures are explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE      
Inhalation Cough. Drowsiness. Dizziness. Headache. Nausea.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work.  Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. 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. Do NOT wash away into sewer.   
EC Classification
 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30GF1-I+II.  Fireproof. Cool. Keep in a well-ventilated room. Separated from strong oxidants, strong bases and strong acids. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
On combustion, forms corrosive fumes including hydrogen sulfide and sulfur oxides. Reacts violently with oxidants, reducing agents, strong acids and strong bases. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. Exposure at high levels could cause lowering of consciousness. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 68°C
Melting point: -113°C
Relative density (water = 1): 0.84
Solubility in water, g/100ml at 25°C: 0.190
Vapour pressure, kPa at 25°C: 20.7 (calculated)
Relative vapour density (air = 1): 2.63
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.101
Flash point: -20°C
Octanol/water partition coefficient as log Pow: 1.7 (estimated) 
 

NOTES
Health effects of exposure to the substance have not been investigated adequately.
Environmental effects from the substance have not been investigated adequately.
Card has been partially updated in January 2008: see Ingestion First Aid. 

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