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NIOSH

2-BUTANOL

ICSC: 0112

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
April 19, 2005 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Above 24°C explosive vapour/air mixtures may be formed.
Above 24°C use a closed system, ventilation, and explosion-proof electrical equipment.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


•INHALATION Headache. Dizziness. Drowsiness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN Dry skin.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES Redness. Pain.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Dizziness. Drowsiness.
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

STORAGE

PACKAGING & LABELLING

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.
Fireproof. Separated from strong oxidants, aluminium.

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
ICSC: 0112 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

2-BUTANOL

ICSC: 0112

I

M

P

O

R

T

A

N

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D

A

T

A

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


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 . 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.

PHYSICAL
PROPERTIES

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
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

ENVIRONMENTAL
DATA


N O T E S

Check for peroxides prior to distillation; eliminate if found.
Transport Emergency Card: TEC (R)-30S1120-III

NFPA Code: H1; F3; R0;

ADDITIONAL INFORMATION



ICSC: 0112 2-BUTANOL
(C) IPCS, CEC, 1994
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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