International Chemical Safety Cards

4,4'-METHYLENEDIANILINE ICSC: 1111

4,4'-METHYLENEDIANILINE
4,4'-Diaminodiphenylmethane
4,4'-Methylenebisbenzenamine
MDA
NH2C6H4CH2C6H4NH2/C13H14N2
Molecular mass: 198.3
CAS # 101-77-9
RTECS # BY5425000
ICSC # 1111
UN # 2651
EC # 612-051-00-1
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION


EXPOSURE
STRICT HYGIENE!
IN ALL CASES CONSULT A DOCTOR!
  • INHALATION
    		• Abdominal pain. Cough. Nausea. Vomiting. Fever and chill.
    		Ventilation (not if powder), local exhaust, or breathing protection.
    		Fresh air, rest. Refer for medical attention.
  • SKIN
    		• Dry skin. Redness (further see Inhalation).
    		Protective gloves. Protective clothing.
    		Remove contaminated clothes. Rinse and then wash skin with water and soap.
  • EYES

    		• Safety spectacles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION
    		• (further see Inhalation).
    		Do not eat, drink, or smoke during work.
    		Rinse mouth. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into sealable containers. Carefully collect remainder, then remove to safe place (extra personal protection: self-contained breathing apparatus).
    		Separated from strong oxidants. store separated from food and feedstuffs.
    		Do not transport with food and feedstuffs.
    Xn symbol
    R: 20/21/22
    UN Hazard Class: 6.1
    UN Packing Group: III
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 1111 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    4,4'-METHYLENEDIANILINE ICSC: 1111

    I
    M
    P
    O
    R
    T
    A
    N
    T

    D
    A
    T
    A
    PHYSICAL STATE; APPEARANCE:
     PALE YELLOW CRYSTALS , WITH CHARACTERISTIC ODOUR. TURNS DARK ON EXPOSURE TO AIR.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     The substance decomposes on heating or on burning producing toxic fumes (aniline, nitrogen oxides). The substance is a weak base. Reacts violently with strong oxidants.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: 0.1 ppm; 0.81 mg/m3 (A2) (skin) (ACGIH 1990-1991).
    OSHA PEL: 1910.1050 TWA 0.010 ppm ST 0.100 ppm
    NIOSH REL: Ca See Appendix A
    NIOSH IDLH: Potential occupational carcinogen No data


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

    INHALATION RISK:
     Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance may cause effects on the liver , resulting in jaundice.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. This substance is possibly carcinogenic to humans.
    PHYSICAL
    PROPERTIES
    Boiling point at 102 kPa: 389-399°C
    Melting point: 92°C
    Relative density (water = 1): 1.1
    Solubility in water: Poor (0.1 g/100 ml at 25°C)
    		 Vapour pressure, Pa at 100°C: 1.6
    Flash point: 221°C (c.c.)°C
    Octanol/water partition coefficient as log Pow: 1.6-2.5
    ENVIRONMENTAL
    DATA
    NOTES
    Depending on the degree of exposure, periodic medical examination is indicated.
    Transport Emergency Card: TEC (R)-61G12c
    ADDITIONAL INFORMATION


    ICSC: 1111 4,4'-METHYLENEDIANILINE
    © IPCS, CEC, 1993
    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 IDLH values.