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n-HEPTANETHIOL
ICSC: 1619
Peer-Review Status: 05.04.2006 Validated
n-Heptylthiol
n-Thioheptyl alcohol
1-Mercaptoheptane
Heptyl mercaptan 
CAS #: 1639-09-4 RTECS #: MJ1400000
UN #: 3336
EINECS #: 216-678-8
    Formula: C7H16S / CH3(CH2)6SH
Molecular mass: 132.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames, NO sparks and NO smoking.  Use water spray, powder, alcohol-resistant foam, carbon dioxide. 
EXPLOSION Above 46°C explosive vapour/air mixtures may be formed.  Above 46°C use a closed system, ventilation and explosion-proof electrical equipment.   
 
EXPOSURE      
Inhalation Dizziness. Drowsiness. Headache. Nausea.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness. Pain.  Protective gloves.  Remove contaminated clothes. 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. 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: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30GF1-III.  Fireproof. 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
Reacts with oxidants, strong acids, strong bases and reducing agents. Decomposes on heating. This produces toxic and corrosive fumes including hydrogen sulfide and sulfur oxides. 

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: 176°C
Melting point: -43°C
Relative density (water = 1): 0.84
Solubility in water: very poor
Vapour pressure, kPa at ?°C: 0.17
Relative vapour density (air = 1): 4.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.006
Flash point: 46°C c.c.
Explosive limits, vol% in air: 0.9-?
Octanol/water partition coefficient as log Pow: 3.7
Viscosity: 1.24 cP at 20°C 
 

NOTES
Health effects of exposure to the substance have not been investigated adequately.
Environmental effects from the substance have not been investigated.
adequately 

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