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ETHYLHEXALDEHYDEICSC: 0621
Ethylhexanal
2-Ethylhexanal
2-Ethylcaproaldehyde
Butyl ethyl acetaldehyde
November 1997
CAS #: 123-05-7
UN #: 1191
EC Number: 204-596-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable.  Above 46°C explosive vapour/air mixtures may be formed.  NO open flames, NO sparks and NO smoking. NO contact with hot surfaces.  Above 46°C use a closed system, ventilation and explosion-proof electrical equipment.  Use powder, AFFF, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat.  Use ventilation.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Dry skin. Redness. See Inhalation.  Protective gloves.  Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
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 Abdominal pain. Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment. Personal protection: filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. 

According to UN GHS Criteria

 

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

STORAGE
Fireproof. Separated from acids, bases and oxidants. Cool. Well closed. 
PACKAGING
Airtight. 
ETHYLHEXALDEHYDE ICSC: 0621
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air. 

Chemical dangers
The substance can form explosive peroxides on prolonged contact with oxygen or air. The substance polymerizes on contact with sodium hydroxide, ammonia, butyl- and dibutylamine and inorganic acids. Reacts with oxidants. 

Formula: C8H16O / C4H9CH(C2H5)CHO
Molecular mass: 128.24
Boiling point: 163°C
Melting point: -85°C
Relative density (water = 1): 0.85
Solubility in water, g/100ml at 20°C: 0.07
Vapour pressure, Pa at 20°C: 200
Relative vapour density (air = 1): 4.5
Flash point: 46°C c.c., 52°C o.c.
Auto-ignition temperature: 180°C
Explosive limits, vol% in air: 0.85-7.2 


EXPOSURE & HEALTH EFFECTS

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

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

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
Repeated or prolonged contact with skin may cause dermatitis. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Check for peroxides prior to distillation; eliminate if found. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations