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CITRAL
ICSC: 1725
Peer-Review Status: 13.11.2008 Validated
2,6-Octadienal,3,7-dimethyl-
3,7-Dimethyl-2,6 octadienal
Lemonal 
CAS #: 5392-40-5 RTECS #: RG5075000
EC #: 605-019-00-3
EINECS #: 226-394-6
    Formula: C10H16O
Molecular mass: 152.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use foam, dry powder, carbon dioxide. 
EXPLOSION Above 82°C explosive vapour/air mixtures may be formed.  Above 82°C use a closed system and ventilation.   
 
EXPOSURE   PREVENT GENERATION OF MISTS!   
Inhalation Cough.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness.  Protective gloves. Protective clothing.  Rinse and then wash skin with water and soap. 
Eyes   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. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Remove all ignition sources. Personal protection: chemical protection suit and filter respirator for organic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.   
EC Classification
Symbol: Xi; R: 38-43; S: (2)-24/25-37 
UN Classification
 
GHS Classification
Signal: Warning
Combustible liquid
May be harmful if swallowed
May be harmful in contact with skin
Causes skin irritation
May cause allergic skin reaction
Toxic to aquatic life 
excl mark;warn

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H2; F1; R0.  Cool. Ventilation along the floor. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
PALE YELLOW LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on burning. This produces irritating fumes. The substance may polymerize due to heating. 

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

Routes of exposure
 

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 skin. 

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 226-228°C
Melting point: <-10°C
Density: 0.9 g/cm³
Solubility in water, g/100ml at 25°C: 0.059 (very poor)
Vapour pressure, Pa at 100°C: <130
Relative vapour density (air = 1): 5.3
Flash point: 82°C c.c.
Auto-ignition temperature: 225°C
Explosive limits, vol% in air: 4.3 - 9.9
Octanol/water partition coefficient as log Pow: 2.76  
The substance is toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Citral is a mixture of two geometric isomers, geranial (trans confirmation, approx. 55-70%) and neral (cis confirmation, 35-45%). 

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
       Citral (FAO Nutrition Meetings Report Series 44a)
       CITRAL (JECFA Evaluation)
       Citral  (SIDS)