International Chemical Safety Cards

MONOMETHYLAMINE ICSC: 0178
MONOMETHYLAMINE
Methylamine
Methanamine
Aminomethane
(cylinder)
CH5N / CH3NH2
Molecular mass: 31.1
CAS # 74-89-5
RTECS # PF6300000
ICSC # 0178
UN # 1061 (anhydrous)
EC # 612-001-00-9
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Extremely flammable. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames, NO sparks, and NO smoking.
Shut off supply; if not possible and no risk to surroundings, let the fire burn itself out; in other cases extinguish with powder, carbon dioxide.
EXPLOSION Gas/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Use non-sparking handtools.
In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.
EXPOSURE
STRICT HYGIENE!

  • INHALATION
    		• Burning sensation. Cough. Headache. Laboured breathing. Nausea. Shortness of breath. Sore throat.
    		Ventilation, local exhaust, or breathing protection.
    		Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.
  • SKIN
    		• Redness. Pain. ON CONTACT WITH LIQUID: FROSTBITE.
    		Cold-insulating gloves. Protective clothing.
    		ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.
  • EYES
    		• Redness. Pain. Further see Skin.
    		Safety goggles, face shield, 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



    • SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Ventilation. Remove all ignition sources. NEVER direct water jet on liquid. Remove vapours with fine water spray (extra personal protection: chemical protection suit including self-contained breathing apparatus).
    		Cool.

    F+ symbol
    Xn symbol
    R: 12-20-37/38-41
    S: (2-)16-26-39
    Note: C
    UN Hazard Class: 2.1
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0178 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

    MONOMETHYLAMINE ICSC: 0178

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    PHYSICAL STATE; APPEARANCE:
     COLOURLESS COMPRESSED LIQUEFIED GAS , WITH CHARACTERISTIC ODOUR.

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

    CHEMICAL DANGERS:
     The substance decomposes on burning producing toxic fumes including nitrogen oxides. The substance is a medium strong base. Reacts violently with strong oxidants, strong acids. Attacks copper, zinc alloys, aluminum and galvanized surfaces.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV (as TWA): 5 ppm; 6.4 mg/m3 (STEL): 15 ppm; 19 mg/m3 (ACGIH 1997).
    MAK: 10 ppm; 12 mg/m3; (1992)


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation.

    INHALATION RISK:
     A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes and the respiratory tract. Rapid evaporation of the liquid may cause frostbite.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     Repeated or prolonged contact with skin may cause dermatitis.
    PHYSICAL
    PROPERTIES
    Boiling point: -6░C
    Melting point: -94░C
    Relative density (water = 1): 0.7
    Solubility in water, ml/100 ml at 25░C: very good
    Vapour pressure, kPa at 20░C: 304
    		 Relative vapour density (air = 1): 1.07
    Flash point: Flammable Gas
    Auto-ignition temperature: 430░C
    Explosive limits, vol% in air: 4.9-20.7
    Octanol/water partition coefficient as log Pow: -0.71
    ENVIRONMENTAL
    DATA
    N O T E S
    Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
    Transport Emergency Card: TEC (R)-686.
    NFPA Code: H3; F4; R0.
    ADDITIONAL INFORMATION


    ICSC: 0178 MONOMETHYLAMINE
    © 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.