International Chemical Safety Cards

BUTYRALDEHYDE ICSC: 0403
BUTYRALDEHYDE
Butanal
Butyl aldehyde
C4H8O / CH3-CH2-CH2-CHO
Molecular mass: 72.1
CAS # 123-72-8
RTECS # ES2275000
ICSC # 0403
UN # 1129
EC # 605-006-00-2
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Highly flammable.
NO open flames, NO sparks, and NO smoking.
Foam, alcohol-resistant foam, powder, carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive. Heating may cause pressure rise with risk of bursting and explosion.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling.
In case of fire: keep drums, etc., cool by spraying with water.
 
EXPOSURE


INHALATION Burning sensation. Cough. Sore throat.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
SKIN Redness. Burning sensation.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
EYES Redness. Pain.
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION Burning sensation.
Do not eat, drink, or smoke during work.
Rinse mouth. Rest. Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place (extra personal protection: chemical suit with self-contained breathing apparatus).
Fireproof. Separated from incompatible substances: see Chemical Dangers. Cool. Keep in the dark.

F symbol
R: 11
S: (2-)9-29-33
UN Hazard Class: 3
UN Packing Group: II
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0403 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

BUTYRALDEHYDE ICSC: 0403

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PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH PUNGENT ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air, and may travel along the ground; distant ignition possible.

CHEMICAL DANGERS:
The substance can presumably form explosive peroxides. The substance may polymerize due to heating, under the influence of acids or alkalis. Reacts with amines, oxidants, strong bases and acids.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
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 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 irritates the eyes, the skin and the respiratory tract.


PHYSICAL
PROPERTIES
 Boiling point: 75°C
Melting point: -99°C
Relative density (water = 1): 0.8
Solubility in water, g/100 ml: 7
Vapour pressure, kPa at 20°C: 12.2		 Relative vapour density (air = 1): 2.5
Flash point: -7°C
Auto-ignition temperature: 230°C
Explosive limits, vol% in air: 2.5%-12.5%
Octanol/water partition coefficient as log Pow: 1.18
ENVIRONMENTAL
DATA
 The substance is harmful to aquatic organisms.
N O T E S
Check for peroxides prior to distillation; eliminate if found.
Transport Emergency Card: TEC (R)-694
NFPA Code: H3; F3; R2;
ADDITIONAL INFORMATION


ICSC: 0403 BUTYRALDEHYDE
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or 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. 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.