Propionic aldehyde
Methylacetaldehyde
Propanal
Propyl aldehyde
C3H6O / CH3CH2CHO
Molecular mass: 58.1
ICSC # 0550
CAS # 123-38-6
RTECS # UE0350000
UN # 1275
EC # 605-018-00-8
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Highly flammable.
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NO open flames, NO sparks, and NO smoking.
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Powder, alcohol-resistant foam, water spray, carbon dioxide
.
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Explosion
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Vapour/air mixtures are explosive.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
Do NOT use compressed air for filling, discharging, or handling.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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•Inhalation
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Cough.
Sore throat.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
Pain.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety goggles,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Burning sensation.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Remove all ignition sources.
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.
Do NOT wash away into sewer.
(Extra personal protection: filter respirator for organic gases and vapours.)
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Fireproof.
Separated from
acids,
bases
and
oxidants
.
Cool.
Keep in the dark.
Store only if stabilized.
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F symbol
Xi symbol
R: 11-36/37/38
S: 2-9-16-29
UN Hazard Class: 3
UN Packing Group: II
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Important Data
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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
under the influence of
acid(s)
,
base(s)
,
amines
and
oxidants
with fire or explosion hazard.
The substance decomposes
on burning
producing
toxic gases
and
irritating fumes
.
Occupational Exposure Limits:
TLV: 20 ppm as TWA; (ACGIH 2003).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The vapour of the substance
is irritating to
the eyes
and
the respiratory tract.
The substance
is severely irritating to
the eyes
and
the skin.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 49°C
Melting point: -81°C
Relative density (water = 1): 0.8
Solubility in water, g/100 ml: 20
Vapour pressure, kPa at 20°C: 31.3
Relative vapour density (air = 1): 2.0
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Relative density of the vapour/air-mixture at 20°C (air = 1): 1.3
Flash point: -30°C c.c.
Auto-ignition temperature: 207°C
Explosive limits, vol% in air: 2.6-17.0
Octanol/water partition coefficient as log Pow: 0.59
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Environmental
Data
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N O T E S
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Check for peroxides prior to distillation; eliminate if found.
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Transport Emergency Card: TEC (R)-30S1275
NFPA Code: H2; F3; R2;
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ADDITIONAL INFORMATION
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ICSC: 0550
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PROPIONALDEHYDE
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(C) IPCS, CEC, 1994
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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.
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