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CITRAL ICSC: 1725
Date of Peer Review: November 2008

 2,6-Octadienal,3,7-dimethyl-
3,7-Dimethyl-2,6 octadienal
Lemonal
CAS # 5392-40-5 C10H16O
RTECS # RG5075000 Molecular mass: 152.2
UN #
EC Annex 1 Index # 605-019-00-3
EC/EINECS # 226-394-6
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames.
Foam. Dry powder. Carbon dioxide.
EXPLOSION Above 82°C explosive vapour/air mixtures may be formed.
Above 82°C use a closed system, ventilation.

EXPOSURE
PREVENT GENERATION OF MISTS!

Inhalation Cough.
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
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
Personal protection: Chemical protection suit, filter respirator for organic gases and vapours. Remove all ignition sources. Collect leaking liquid in covered containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment.

EMERGENCY RESPONSE 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.
IPCS
International
Programme on
Chemical Safety 		Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities © IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
CITRAL ICSC: 1725
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
PALE YELLOW LIQUID , WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on burning producing irritating fumes. The substance may polymerize due to heating.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.
 		INHALATION RISK:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance 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
Boiling point: 226-228°C
Melting point: <-10°C
Density: 0.9 g/cm³
Solubility in water, g/100 ml at 25°C: 0.059 (very poor)
Vapour pressure, Pa at 100°C: <130
Relative vapour density (air = 1): 5.3
 		Flashpoint: 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
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms. It is strongly advised that this substance does not enter 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


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
© IPCS, CEC 2005 



    See Also:
       Toxicological Abbreviations
       Citral (FAO Nutrition Meetings Report Series 44a)
       CITRAL (JECFA Evaluation)
       Citral  (SIDS)