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3-METHYLBUT-2-EN-1-OLICSC: 1760
2-Buten-1-ol, 3-methyl-
3,3-Dimethylallyl alcohol
Prenyl alcohol
Prenol
May 2010
CAS #: 556-82-1
UN #: 1987
EC Number: 209-141-4

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable.  Above 50°C explosive vapour/air mixtures may be formed.  NO open flames, NO sparks and NO smoking.  Above 50°C use a closed system, ventilation and explosion-proof electrical equipment.  Use foam, carbon dioxide, dry powder, water in large amounts.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Sore throat. Cough.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Seek medical attention if you feel unwell. 
Skin Redness. Pain.  Protective gloves. Protective clothing.  First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again. Refer for medical attention . 
Eyes Redness. Pain.  Wear 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 refer for medical attention. 
Ingestion Sore throat.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: protective gloves and safety goggles. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Carefully collect remainder. Then store and dispose of according to local regulations. Cover the spilled material with non-combustible. 

According to UN GHS Criteria

flam;flameexcl mark;warn
WARNING
Flammable liquid and vapour
Harmful if swallowed
Causes skin irritation
Causes serious eye irritation
Harmful to aquatic life 

Transportation
UN Classification
UN Hazard Class: 3; UN Pack Group: III 

STORAGE
Fireproof. Keep in a well-ventilated room. Well closed. Store in an area without drain or sewer access. 
PACKAGING
 
3-METHYLBUT-2-EN-1-OL ICSC: 1760
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air. 

Chemical dangers
Decomposes on heating. This produces irritating fumes. 

Formula: C5H10O
Molecular mass: 86.1
Boiling point: 140°C
Melting point: -59.3°C
Density: 0.85 g/cm³
Solubility in water, g/100ml at 20°C: 17 (good)
Vapour pressure, Pa at 20°C: 140
Relative vapour density (air = 1): 3.0
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.1
Flash point: 50°C c.c.
Auto-ignition temperature: 305°C
Explosive limits, vol% in air: 2.7-16.3
Octanol/water partition coefficient as log Pow: 0.91
Viscosity: 3.5 mm²/s at 25°C 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by ingestion and by inhalation of its vapour. 

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

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Health effects of exposure to the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations