ICSC:NENG1725 International Chemical Safety Cards (WHO/IPCS/ILO)

2,6-Octadienal,3,7-dimethyl-
3,7-Dimethyl-2,6 octadienal
Lemonal
C₁₀H₁₆O
Molecular mass: 152.2

ICSC #    1725
CAS #     5392-40-5
RTECS # RG5075000
EC #         605-019-00-3

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

Storage

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.

Cool. Ventilation along the floor. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

Xi symbol
R: 38-43
S: 2-24/25-37
Signal: Warning
Excl mark
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

Important Data

Physical State; Appearance:
PALE YELLOW LIQUID , WITH CHARACTERISTIC ODOUR.

Physical Dangers:

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.

Routes of Exposure:

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.

N O T E S

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

NFPA Code: H2; F1; R0;

ADDITIONAL INFORMATION

ICSC: 1725	CITRAL
(C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE:

Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.