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ETHYLHEXALDEHYDE
ICSC: 0621
Peer-Review Status: 04.11.1997 Validated
Ethylhexanal
2-Ethylhexanal
2-Ethylcaproaldehyde
Butyl ethyl acetaldehyde 
CAS #: 123-05-7 RTECS #: MN7525000
UN #: 1191
EINECS #: 204-596-5
    Formula: C8H16O / C4H9CH(C2H5)CHO
Molecular mass: 128.24

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Flammable.  NO open flames, NO sparks and NO smoking. NO contact with hot surfaces.  Use powder, AFFF, foam, carbon dioxide. 
EXPLOSION Above 46°C explosive vapour/air mixtures may be formed.  Above 46°C use a closed system, ventilation and explosion-proof electrical equipment.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
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
PACKAGING & 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.  Airtight. 
EC Classification
 
UN Classification
UN Hazard Class: 3; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30G35.
NFPA Code: H2; F2; R1. 
Fireproof. Separated from acids, bases and oxidants. Cool. Well closed. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour and 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 on evaporation at 20°C. 

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

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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 
The substance is harmful to aquatic organisms. 

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

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