1-PENTANETHIOL 1521
April 2004
Amyl mercaptan
CAS No: 110-66-7
Pentyl mercaptan
RTECS No: SA3150000
Amyl hydrosulfide
UN No: 1111
2-Methylbutyl mercaptan
C5H12S / CH3(CH2)4SH
Molecular mass: 104.2
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Highly flammable. Gives off NO open flames, NO sparks, and Powder, AFFF, foam, carbon
FIRE
irritating or toxic fumes (or gases) NO smoking. dioxide.
in a fire.
Vapour/air mixtures are explosive. Closed system, ventilation, In case of fire: keep drums, etc.,
EXPLOSION
explosion-proof electrical equipment cool by spraying with water.
and lighting.
EXPOSURE
Headache. Nausea. Cough. Ventilation, local exhaust, or Fresh air, rest. Refer for medical
Inhalation
breathing protection. attention.
Redness. Pain. Protective gloves. Remove contaminated clothes.
Skin
Rinse skin with plenty of water or
shower.
Redness. Pain. Safety spectacles. First rinse with plenty of water for
Eyes
several minutes (remove contact
lenses if easily possible), then take
to a doctor.
Burning sensation in the throat and Do not eat, drink, or smoke during Rinse mouth. Give plenty of water to
Ingestion
chest. Headache. Nausea. work. drink. Do NOT induce vomiting.
Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Remove all ignition sources. Cover the spilled UN Hazard Class: 3
material with absorbent material. Sweep spilled UN Pack Group: II
substance into sealable containers. Do NOT wash
away into sewer. Personal protection: filter respirator
for organic gases and vapours.
EMERGENCY RESPONSE STORAGE
NFPA Code: H2; F3; R0 Fireproof.
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2004
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
1521 1-PENTANETHIOL
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR. The substance can be absorbed into the body by inhalation of
its aerosol.
Physical dangers
Inhalation risk
The vapour mixes well with air, explosive mixtures are formed
easily. 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.
Chemical dangers
The substance decomposes on burning producing toxic and
Effects of short-term exposure
corrosive fumes including hydrogen sulfide and sulfur oxides.
Reacts with acids, bases and strong oxidants. The substance is irritating to the eyes, the skin and the
respiratory tract.
Occupational exposure limits
TLV not established.
MAK not established.
PHYSICAL PROPERTIES
Boiling point at 61.3 kPa: 126.6/C Vapour pressure, kPa at 25/C: 1.84
Melting point: -75.7/C Relative vapour density (air = 1): 3.6
Relative density (water = 1): 0.84 Relative density of the vapour/air-mixture at 20/C (air = 1): 1.05
Solubility in water: none Flash point: 18/C
ENVIRONMENTAL DATA
NOTES
Health effects of exposure to the substance have not been investigated adequately.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2004
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