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NIOSH

ISOAMYL ALCOHOL

ICSC: 0798

3-Methyl-1-butanol
Isopentyl alcohol
Isobutylcarbinol
C5H12O / (CH3)2CHCH2CH2OH
Molecular mass: 88.2
ICSC # 0798 		CAS # 123-51-3
RTECS # EL5425000
UN # 1105
EC # 603-006-00-7
September 10, 1997 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
Alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION Above 45°C explosive vapour/air mixtures may be formed.
Above 45°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 Cough. Dizziness. Headache. Nausea. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN Dry skin. Redness. Roughness. Pain.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES Redness. Pain.
Safety spectacles, face shield, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Abdominal pain. Burning sensation in the chest and stomach. Headache. Nausea. Unconsciousness. Vomiting. Weakness.
Do not eat, drink, or smoke during work.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Do NOT induce vomiting. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Collect leaking liquid in sealable containers. Wash away spilled liquid with plenty of water.
Fireproof. Separated from strong oxidants.

Note: C
Xn symbol
R: 10-20-37-66
S: 2-46
UN Hazard Class: 3
UN Packing Group: III
ICSC: 0798 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.

ISOAMYL ALCOHOL

ICSC: 0798

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts violently with strong oxidants. Reacts with reducing agents . Reacts violently with hydrogen trisulfide causing explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 100 ppm as TWA; 125 ppm as STEL; (ACGIH 2004).
MAK: 100 ppm, 370 mg/m3
Peak limitation category: II(2); Pregnancy risk group: C :
(DFG 2004).
OSHA PEL†: TWA 100 ppm (360 mg/m3)
NIOSH REL: TWA 100 ppm (360 mg/m3) ST 125 ppm (450 mg/m3)
NIOSH IDLH: 500 ppm See: 123513


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation 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 , the skin and the respiratory tract . The substance may cause effects on the central nervous system, if ingested.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The liquid defats the skin.

PHYSICAL
PROPERTIES

Boiling point: 132°C
Melting point: -117°C
Relative density (water = 1): 0.8
Solubility in water, g/100 ml: 2.5
Vapour pressure, kPa at 20°C: 0.4
Relative vapour density (air = 1): 3.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.01
Flash point: 45°C c.c. 55°C o.c.
Auto-ignition temperature: 350°C
Explosive limits, vol% in air: 1.2-9 (at 100°C)
Octanol/water partition coefficient as log Pow: 1.42

ENVIRONMENTAL
DATA


N O T E S

Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-30GF1-II

NFPA Code: H1; F2; R0;

ADDITIONAL INFORMATION



ICSC: 0798 ISOAMYL ALCOHOL
(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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