sec-Butyl alcohol
Butan-2-ol
1-Methyl propanol
Methyl ethyl carbinol
Butylene hydrate
C4H10O / CH3CHOHCH2CH3
Molecular mass: 74.1
ICSC # 0112
CAS # 78-92-2
RTECS # EO1750000
UN # 1120
EC # 603-127-00-5
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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.
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NO open flames, NO sparks, and NO smoking.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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Above 24°C explosive vapour/air mixtures may be formed.
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Above 24°C use a closed system, ventilation, and explosion-proof electrical equipment.
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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.
Dizziness.
Drowsiness.
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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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Dry skin.
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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 goggles.
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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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Dizziness.
Drowsiness.
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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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Personal protection: filter respirator for organic gases and vapours.
Collect leaking liquid in sealable containers.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Wash away remainder with plenty of water.
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Fireproof.
Separated from strong oxidants, aluminium.
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Note: C
Xi symbol
R: 10-36/37-67
S: 2-7/9-13-24/25-26-46
UN Hazard Class: 3
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance can form explosive peroxides.
Reacts with aluminium when heated to 100°C,
strong oxidants
, such as chromium trioxide
forming flammable/explosive gas (hydrogen - see ICSC0001).
Attacks some forms of plastic, rubber and coatings.
Occupational Exposure Limits:
TLV: 100 ppm as TWA; (ACGIH 2005).
MAK: IIb (not established but data is available) (DFG 2004).
OSHA PEL: TWA 150 ppm (450 mg/m3)
NIOSH REL: TWA 100 ppm (305 mg/m3) ST 150 ppm (455 mg/m3)
NIOSH IDLH: 2000 ppm See: 78922
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
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Exposure far above the OEL could cause lowering of consciousness.
If this liquid is swallowed, aspiration into the lungs may result in chemical pneumonitis.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
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Physical
Properties
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Boiling point: 100°C
Melting point: -115°C
Relative density (water = 1): 0.81
Solubility in water, g/100 ml at 20°C: 12.5
Vapour pressure, kPa at 20°C: 1.7
Relative vapour density (air = 1): 2.55
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Relative density of the vapour/air-mixture at 20°C (air = 1): 1.03
Flash point: 24°C c.c.
Auto-ignition temperature: 406°C
Explosive limits, vol% in air: 1.7-9.0
Octanol/water partition coefficient as log Pow: 0.6
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Environmental
Data
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N O T E S
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Check for peroxides prior to distillation; eliminate if found.
Transport Emergency Card: TEC (R)-30S1120-III
NFPA Code: H1; F3; R0;
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ADDITIONAL INFORMATION
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ICSC: 0112
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2-BUTANOL
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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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