IPCS INCHEM Home
2-METHYLBUT-3-EN-2-OL
ICSC: 1719
Peer-Review Status: 13.11.2008 Validated
3-Hydroxy-3-methylbutene
2-Methyl-3-buten-2-ol
Dimethylvinylmethanol 
CAS #: 115-18-4 RTECS #: EM9472000
UN #: 1993
EINECS #: 204-068-4
    Formula: C5H10O
Molecular mass: 86.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Highly flammable. Heating will cause rise in pressure with risk of bursting.  NO open flames, NO sparks and NO smoking.  Use carbon dioxide, dry powder. 
EXPLOSION Vapour/air mixtures are explosive.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Use non-sparking handtools.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE      
Inhalation Cough. Sore throat.  Use ventilation.  Fresh air, rest. 
Skin   Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes Redness.  Wear safety spectacles.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Seek medical attention if you feel unwell. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer.   
EC Classification
 
UN Classification
UN Hazard Class: 3; UN Pack Group: II 
GHS Classification
Signal: Danger
Highly flammable liquid and vapour
Harmful if swallowed
Causes eye irritation 
flam;flameexcl mark;warn

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H1; F4; R0.  Fireproof. Separated from oxidants. Well closed. Ventilation along the floor. Store in an area without drain or sewer access. 

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

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

Chemical dangers
Reacts violently with oxidants. 

Occupational exposure limits
TLV not established.
MAK (not established):. 

Routes of exposure
The substance can be absorbed into the body by ingestion. 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached. 

Effects of short-term exposure
The substance is irritating to the eyes. 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 97°C
Melting point: -28°C
Density: 0.8 g/cm³
Solubility in water, g/100ml at 20°C: 19 (good)
Vapour pressure, kPa at 25°C: 3.13
Relative vapour density (air = 1): 3.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.06
Flash point: 10°C c.c.
Auto-ignition temperature: 380°C
Explosive limits, vol% in air: 1.5 - 9.4
Octanol/water partition coefficient as log Pow: 0.66  
 

NOTES
 

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