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tert-BUTANOL
ICSC: 0114
Peer-Review Status: 10.04.2008 Validated
tert-Butyl alcohol
2-Methyl-2-propanol
Trimethyl carbinol
2-Methylpropan-2-ol
1,1-Dimethylethanol 
CAS #: 75-65-0 RTECS #: EO1925000
UN #: 1120
EC #: 603-005-00-1
EINECS #: 200-889-7
    Formula: C4H10O / (CH3)3COH
Molecular mass: 74.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Highly flammable.  NO open flames, NO sparks and NO smoking.  Use water spray, alcohol-resistant foam, powder, carbon dioxide. 
EXPLOSION Vapour/air mixtures are explosive. Heating will cause rise in pressure with risk of bursting.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE      
Inhalation Dizziness. Drowsiness. Nausea. Headache. Vomiting.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: self-contained breathing apparatus. Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Wash away remainder with plenty of water.   
EC Classification
Symbol: F, Xn; R: 11-20-36/37; S: (2)-9-16-46 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
Signal: Danger
Highly flammable liquid and vapour
May be harmful if swallowed
May cause drowsiness and dizziness
Causes eye irritation 
flam;flameexcl mark;warn

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F3; R0.  Fireproof. Separated from strong oxidants and strong acids. 

IMPORTANT DATA
Physical State; Appearance
COLOURLESS LIQUID OR CRYSTALLINE POWDER WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour mixes well with air, explosive mixtures are easily formed. 

Chemical dangers
Decomposes on contact with strong mineral acids or strong oxidants. This generates fire and explosion hazard. 

Occupational exposure limits
TLV: 100ppm as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2007).
MAK: 20 ppm, 62 mg/m³; Peak limitation category: II(4); Pregnancy risk group: C; (DFG 2007).
EU OEL:. 

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 can be reached rather quickly on evaporation of this substance at 20°C. 

Effects of short-term exposure
The substance is irritating to the eyes. The substance may cause effects on the central nervous system. Exposure far above the OEL could cause lowering of consciousness. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 83°C
Melting point: 25°C
Relative density (water = 1): 0.8
Solubility in water: miscible
Vapour pressure, kPa at 20°C: 4.1
Relative vapour density (air = 1): 2.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.06
Flash point: 11°C c.c.
Auto-ignition temperature: 470°C
Explosive limits, vol% in air: 1.7-8.0
Octanol/water partition coefficient as log Pow: 0.3  
 

NOTES
The odour warning when the exposure limit value is exceeded is insufficient.
Card has been partially updated in April 2010: see EU Classification. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations