International Chemical Safety Cards

METHACRYLALDEHYDE ICSC: 1259
METHACRYLALDEHYDE
2-Methyl-2-propenal
Isobutenal
Methacrolein
C4H6O/CH2=C(CH3)CHO
Molecular mass: 70.1
CAS # 78-85-3
RTECS # OZ2625000
ICSC # 1259
UN # 2396

TYPES OF
HAZARD/
EXPOSURE
ACUTE HAZARDS/
SYMPTOMS
PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Highly flammable.
NO open flames, NO sparks, and NO smoking.
Powder, alcohol-resistant foam, water spray, 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
PREVENT GENERATION OF MISTS!

  • INHALATION
  • Cough. Sore throat.
    Ventilation, local exhaust, or breathing protection.
    Fresh air, rest.
  • SKIN
  • MAY BE ABSORBED! Redness. Pain.
    Protective gloves. Protective clothing.
    Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
  • EYES
  • Redness. Pain.
    Safety spectacles 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

  • Do not eat, drink, or smoke during work.
    Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    Fireproof. Separated from strong oxidants, acids, bases, food and feedstuffs. Cooled. Keep in the dark. Well closed. Keep under inert gas. Store only if stabilized.
    Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.
    UN Hazard Class: 3
    UN Subsidiary Risks: 6.1
    UN Packing Group: II
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 1259 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

    METHACRYLALDEHYDE ICSC: 1259

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

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

    CHEMICAL DANGERS:
    The substance can polymerize due to warming or under the influence of light, acids and bases, with fire or explosion hazard. Reacts violently with alkalies, amines, strong acids and peroxides.

    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:
    A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20C.

    EFFECTS OF SHORT-TERM EXPOSURE:
    The substance irritates the eyes, the skin and the respiratory tract.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    PHYSICAL
    PROPERTIES
    Boiling point: 68C
    Melting point: -81C
    Relative density (water = 1): 0.8
    Solubility in water, g/100 ml at 20C: 6
    Vapour pressure, kPa at 20C: 16
    Relative vapour density (air = 1): 2.42
    Flash point: -15C
    Auto-ignition temperature: 295C
    Explosive limits, vol% in air: 2.6-?
    ENVIRONMENTAL
    DATA

    N O T E S
    Health effects of exposure to the substance have not been investigated. An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. Check for peroxides prior to distillation; eliminate if found.
    Transport Emergency Card: TEC (R)-30G32
    NFPA Code: H3; F3; R2;
    ADDITIONAL INFORMATION


    ICSC: 1259 METHACRYLALDEHYDE
    © 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.