ICSC:NENG0403 International Chemical Safety Cards (WHO/IPCS/ILO)

Butanal
Butyl aldehyde
C₄H₈O / CH₃CH₂CH₂CHO
Molecular mass: 72.1

ICSC #    0403
CAS #     123-72-8
RTECS # ES2275000
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, powder, carbon dioxide.
Explosion	Vapour/air mixtures are explosive.	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	Cough. Sore throat.	Ventilation, local exhaust, or breathing protection.	Fresh air, rest.
•Skin	Redness.	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.

Spillage Disposal

Storage

Packaging & Labelling

Personal protection: filter respirator for organic gases and vapours. Do NOT let this chemical enter the environment. 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.

Fireproof. Separated from incompatible materials . See Chemical Dangers. Cool. Keep in the dark. Store in an area without drain or sewer access.

F symbol
R: 11
S: 2-9-29-33
UN Hazard Class: 3
UN Packing Group: II
Signal: Danger
Flame-Excl mark
Highly flammable liquid and vapour
May be harmful if swallowed
May be harmful in contact with skin
Causes serious eye irritation
Harmful to aquatic life

Important Data

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 . Reacts with amines , oxidants , strong bases and acids .

Occupational Exposure Limits:
TLV not established.
MAK 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 is irritating to the eyes , the skin and the respiratory tract .

Effects of Long-Term or Repeated Exposure:

Physical
Properties

Boiling point: 74.8°C
Melting point: -99°C
Density: 0.8
g/cm³
Solubility in water, g/100 ml: 7
Vapour pressure, kPa at 20°C: 12.2

Relative vapour density (air = 1): 2.5
Flash point: -12°C
c.c.
Auto-ignition temperature: 230°C
Explosive limits, vol% in air: 1.9-12.5
Octanol/water partition coefficient as log Pow: 0.88

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)-30S1129

NFPA Code: H3; F3; R0;
Card has been partially updated in August 2007: see Storage.

ADDITIONAL INFORMATION

ICSC: 0403	BUTYRALDEHYDE
(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.