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n-HEXANETHIOL ICSC: 1523
Date of Peer Review: April 2004

1-Mercaptohexane
1-Hexylthiol
Hexyl mercaptan
CAS # 111-31-9 C6H14S / CH3(CH2)5SH
RTECS # MO4550000 Molecular mass: 118.2
UN # 3336
EC #
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.
Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION


EXPOSURE


Inhalation Headache. Dizziness. Drowsiness. Nausea.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Redness. Pain.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness. Pain.
Safety spectacles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Burning sensation in the throat and chest. (Further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Do NOT induce vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Remove all ignition sources. Cover the spilled material with absorbent material. Sweep spilled substance into sealable containers. Do NOT wash away into sewer. Personal protection: filter respirator for organic gases and vapours.
EU Classification
UN Classification
UN Hazard Class: 3
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-30GF1-I+II
Fireproof.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
n-HEXANETHIOL ICSC: 1523
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 acids, bases and strong oxidants. The substance decomposes on burning producing toxic and corrosive fumes including hydrogen sulfide and sulfur oxides.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK 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 in which a harmful concentration in the air is reached on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract. The substance may cause effects on the central nervous system, resulting in lowering of consciousness.

PHYSICAL PROPERTIES
Boiling point: 151C
Relative density (water = 1): 0.84
Solubility in water: none
Vapour pressure, kPa at 40C: 0.16
Relative vapour density (air = 1): 5.04
Flash point: 30C
Explosive limits, vol% in air: 0.7-5.5
Octanol/water partition coefficient as log Pow: 5.35
ENVIRONMENTAL DATA

NOTES
Health effects of exposure to the substance have not been investigated adequately.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999