Amyl mercaptan
Pentyl mercaptan
Amyl hydrosulfide
2-Methylbutyl mercaptan
C5H12S / CH3(CH2)4SH
Molecular mass: 104.2
ICSC # 1521
CAS # 110-66-7
RTECS # SA3150000
UN # 1111
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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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Highly 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, AFFF, foam, carbon dioxide.
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Explosion
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Vapour/air mixtures are explosive.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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•Inhalation
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Headache.
Nausea.
Cough.
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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.
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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.
Headache.
Nausea.
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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 mixes well with air, explosive mixtures are formed easily.
Chemical Dangers:
The substance decomposes
on burning
producing
toxic and corrosive fumes
including
hydrogen sulfide
and
sulfur oxides
.
Reacts
with
acids
,
bases
and
strong oxidants
.
Occupational Exposure Limits:
TLV not established.
MAK not established.
OSHA PEL: none
NIOSH REL: C 0.5 ppm (2.1 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 of its aerosol.
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
.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point at 61.3 kPa: 126.6°C
Melting point: -75.7°C
Relative density (water = 1): 0.84
Solubility in water:
none
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Vapour pressure, kPa at 25°C: 1.84
Relative vapour density (air = 1): 3.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.05
Flash point: 18°C
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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.
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ADDITIONAL INFORMATION
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ICSC: 1521
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1-PENTANETHIOL
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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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