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NIOSH

METHYL ISOBUTYL CARBINOL

ICSC: 0665

4-Dimethyl butan-2-ol
4-Methyl-2-pentanol
Methyl amyl alcohol
C6H14O / CH3HCOHCH2CH(CH3)2
Molecular mass: 102.2
ICSC # 0665 		CAS # 108-11-2
RTECS # SA7350000
UN # 2053
EC # 603-008-00-8
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.
Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION Above 41°C explosive vapour/air mixtures may be formed.
Above 41°C use a closed system, ventilation, and explosion-proof electrical equipment.

EXPOSURE
PREVENT GENERATION OF MISTS!

•INHALATION Cough. Sore throat. Unconsciousness.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
•SKIN Dry skin. Redness. Pain.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
•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
Do not eat, drink, or smoke during work.
Rinse mouth. Rest. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Ventilation. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer. Personal protection: filter respirator for organic gases and vapours.
Fireproof if in building. Separated from strong oxidants. Cool.

Xi symbol
R: 10-37
S: 2-24/25
UN Hazard Class: 3
UN Packing Group: III
ICSC: 0665 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.

METHYL ISOBUTYL CARBINOL

ICSC: 0665

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID.

PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground; distant ignition possible.

CHEMICAL DANGERS:
Reacts with strong oxidants.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 25 ppm as TWA, 40 ppm as STEL; (skin); (ACGIH 2004).
MAK: 20 ppm, 85 mg/m3;
Peak limitation category: I(1); Pregnancy risk group: D;
(DFG 2006).
OSHA PEL†: TWA 25 ppm (100 mg/m3) skin
NIOSH REL: TWA 25 ppm (100 mg/m3) ST 40 ppm (165 mg/m3) skin
NIOSH IDLH: 400 ppm See: 108112


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour and through the skin.

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 . Exposure could cause lowering of consciousness.

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

PHYSICAL
PROPERTIES

Boiling point: 132°C
Melting point: -90°C
Relative density (water = 1): 0.82
Solubility in water: 2 g/100 ml
Relative vapour density (air = 1): 3.5
Flash point: 41°C
Explosive limits, vol% in air: 1.0-5.5
Octanol/water partition coefficient as log Pow: 1.43

ENVIRONMENTAL
DATA


N O T E S

Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
Transport Emergency Card: TEC (R)-30S2053 or 30GF1-III

NFPA Code: H2; F2; R0;
Card has been partially updated in August 2007: see Occupational Exposure Limits.

ADDITIONAL INFORMATION



ICSC: 0665 METHYL ISOBUTYL CARBINOL
(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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