1-Mercaptohexane
1-Hexylthiol
Hexyl mercaptan
C6H14S / CH3(CH2)5SH
Molecular mass: 118.2
ICSC # 1523
CAS # 111-31-9
RTECS # MO4550000
UN # 3336
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Flammable.
Gives off irritating or toxic fumes (or gases) in a fire.
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NO open flames, NO sparks, and NO smoking.
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Powder, alcohol-resistant foam, water spray, carbon dioxide.
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Explosion
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Exposure
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•Inhalation
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Headache.
Dizziness.
Drowsiness.
Nausea.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
Pain.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety spectacles,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Burning sensation in the throat and chest.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
Do NOT induce vomiting.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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Fireproof.
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UN Hazard Class: 3
UN Packing Group: II
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Important Data
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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.
OSHA PEL: none
NIOSH REL: C 0.5 ppm (2.7 mg/m3) 15-minute
NIOSH IDLH: N.D. See: IDLH INDEX
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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 20°C.
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
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 151°C
Relative density (water = 1): 0.84
Solubility in water:
none
Vapour pressure, kPa at 40°C: 0.16
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Relative vapour density (air = 1): 5.04
Flash point: 30°C
Explosive limits, vol% in air: 0.7-5.5
Octanol/water partition coefficient as log Pow: 5.35
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Environmental
Data
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N O T E S
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Health effects of exposure to the substance have not been investigated adequately.
Transport Emergency Card: TEC (R)-30GF1-I+II
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ADDITIONAL INFORMATION
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ICSC: 1523
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n-HEXANETHIOL
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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