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ISOBUTYRALDEHYDEICSC: 0902
June 2015
CAS #: 78-84-22-Methyl-1-propanal
Isobutanal
UN #: 2045
EINECS #: 201-149-6

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Highly flammable. Gives off irritating or toxic fumes (or gases) in a fire.  Vapour/air mixtures are explosive.  NO open flames, NO sparks and NO smoking.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.  Use powder, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Sore throat. Cough. Burning sensation. Headache. Dizziness. Nausea. Vomiting.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves.  Rinse skin with plenty of water or shower. Remove contaminated clothes. Refer for medical attention . 
Eyes Pain. Redness.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal cramps. Aspiration hazard! Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Remove all ignition sources. Personal protection: protective clothing, protective gloves, safety goggles and filter respirator for organic vapours of low boiling point adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Do NOT wash away into sewer. Collect leaking liquid in sealable containers. Cover the spilled material with inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

flam;flameexcl mark;warncancer;health haz
DANGER
Highly flammable liquid and vapour
Harmful if swallowed
Causes eye irritation
May cause respiratory irritation
May be harmful if swallowed and enters airways
Harmful to aquatic life 

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

STORAGE
Fireproof. Separated from strong oxidants, strong bases, strong acids and strong reducing agents. Well closed. Store in an area without drain or sewer access. 
PACKAGING
 
ISOBUTYRALDEHYDE ICSC: 0902
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH PUNGENT ODOUR. 

Physical dangers
The vapour is heavier than air and may travel along the ground; distant ignition possible. 

Chemical dangers
Decomposes on heating and on burning. This produces acrid smoke and fumes. Reacts with oxidants, strong reductants and strong bases. 

Formula: C4H8O / (CH3)2CHCHO
Molecular mass: 72.1
Boiling point: 63-64°C
Melting point: -65°C
Density: 0.8 g/cm³
Solubility in water, g/100ml at 20°C: 6.7 (moderate)
Vapour pressure, kPa at 20°C: 15.3
Relative vapour density (air = 1): 2.5
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.2
Flash point: -24°C c.c.
Auto-ignition temperature: 165°C
Explosive limits, vol% in air: 1.6-10.6
Octanol/water partition coefficient as log Pow: 1.2
Viscosity: 0.7 mm²/s at 28°C 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Effects of short-term exposure
The substance is irritating to the eyes. The substance at very high concentrations is irritating to the upper respiratory tract. If swallowed the substance may cause vomiting and could result in aspiration pneumonitis. Medical observation is indicated. The substance may cause effects on nervous system. Exposure could cause lowering of consciousness. 

Inhalation risk
No indication can be given whether a harmful concentration in the air will be reached. 

Effects of long-term or repeated exposure
Repeated or chronic inhalation of the vapour may cause chronic inflammation of the upper respiratory tract. 


Occupational exposure limits
 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Rinse contaminated clothing with plenty of water because of fire hazard. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       ISOBUTYRALDEHYDE (JECFA Evaluation)