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ACETALDEHYDE

ICSC: 0009

Acetic aldehyde
Ethanal
Ethyl aldehyde
C2H4O / CH3CHO
Molecular mass: 44.1
ICSC # 0009 		CAS # 75-07-0
RTECS # AB1925000
UN # 1089
EC # 605-003-00-6
November 27, 2003 Validated
Up, 2: 07-2003

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Extremely flammable.
NO open flames, NO sparks, and NO smoking. NO contact with hot surfaces.
Powder, alcohol-resistant foam, water in large amounts, 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. Use non-sparking handtools.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
AVOID ALL CONTACT!

•INHALATION Cough.
Ventilation. Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN Redness. Pain.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
•EYES Redness. Pain.
Safety goggles, or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Diarrhoea. Dizziness. Nausea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Evacuate danger area! 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 absorb in saw-dust or other combustible absorbents. Remove vapour with fine water spray. Do NOT let this chemical enter the environment. Personal protection: filter respirator for organic gases and vapours.
Fireproof. Separated from incompatible materials . See Chemical Dangers. Cooled. Keep in the dark. Store only if stabilized.
Unbreakable packaging; put breakable packaging into closed unbreakable container.
F+ symbol
Xn symbol
R: 12-36/37-40
S: 2-16-33-36/37
UN Hazard Class: 3
UN Packing Group: I
ICSC: 0009 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

ACETALDEHYDE

ICSC: 0009

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PHYSICAL STATE; APPEARANCE:
GAS OR 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 form explosive peroxides in contact with air. The substance may polymerize under the influence of acid(s) and alkaline hydroxides in the presence of trace metals (iron) with fire or explosion hazard. The substance is a strong reducing agent and reacts violently with oxidants, strong acids halogens and amines causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 25 ppm (Ceiling value); A3; (ACGIH 2003).
MAK: 50 ppm, 91 mg/m3;
Peak limitation category: I(1); Carcinogen category: 3B; Pregnancy risk group: D;
(DFG 2003).
OSHA PEL†: TWA 200 ppm (360 mg/m3)
NIOSH REL: Ca See Appendix A See Appendix C (Aldehydes)
NIOSH IDLH: Ca 2000 ppm See: 75070


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation 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 substance is mildly irritating to the eyes , the skin and the respiratory tract . The substance may cause effects on the central nervous system .

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the respiratory tract , resulting in tissue lesions . This substance is possibly carcinogenic to humans.

PHYSICAL
PROPERTIES

Boiling point: 20.2°C
Melting point: -123°C
Relative density (water = 1): 0.78
Solubility in water: miscible
Vapour pressure, kPa at 20°C: 101
Relative vapour density (air = 1): 1.5
Flash point:
-38°C c.c.
Auto-ignition temperature: 185°C
Explosive limits, vol% in air: 4-60
Octanol/water partition coefficient as log Pow: 0.63

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Depending on the degree of exposure, periodic medical examination is suggested. The occupational exposure limit value should not be exceeded during any part of the working exposure. An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. Rinse contaminated clothes (fire hazard) with plenty of water.
Transport Emergency Card: TEC (R)-30S1089

NFPA Code: H 2; F 4; R 2;

ADDITIONAL INFORMATION



ICSC: 0009 ACETALDEHYDE
(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.
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