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NIOSH

4,4'-METHYLENEDIANILINE

ICSC: 1111

4,4'-Diaminodiphenylmethane
4,4'-Methylenebisbenzenamine
MDA
C13H14N2 / NH2C6H4CH2C6H4NH2
Molecular mass: 198.3
ICSC # 1111 		CAS # 101-77-9
RTECS # BY5425000
UN # 2651
EC # 612-051-00-1
March 24, 1999 Validated

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
AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
•INHALATION Abdominal pain. Nausea. Vomiting. Fever and chill.
Ventilation (not if powder), local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
•SKIN MAY BE ABSORBED! (Further see Inhalation).
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
•EYES
Safety spectacles, or face shield.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Jaundice. (Further see Inhalation).
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into sealable containers;if appropreate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment.
Separated from strong oxidants, food and feedstuffs . Well closed. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Do not transport with food and feedstuffs.
Marine pollutant.
Note: E
T symbol
N symbol
R: 45-39/23/24/25-43-48/20/21/22-68-51/53
S: 53-45-61
UN Hazard Class: 6.1
UN Packing Group: III
ICSC: 1111 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.

4,4'-METHYLENEDIANILINE

ICSC: 1111

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS TO PALE YELLOW FLAKES , WITH CHARACTERISTIC ODOUR. TURNS DARK ON EXPOSURE TO AIR.

PHYSICAL DANGERS:


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

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.1 ppm as TWA; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans);; (ACGIH 2008).
MAK: skin absorption (H); sensitization of skin (Sh);
Carcinogen category: 2
(DFG 2008).
OSHA PEL: 1910.1050 TWA 0.010 ppm ST 0.100 ppm
NIOSH REL: Ca See Appendix A
NIOSH IDLH: Ca N.D. See: IDLH INDEX


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 liver impairment.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization. This substance is possibly carcinogenic to humans.

PHYSICAL
PROPERTIES

Boiling point at 102 kPa: 398-399°C
Melting point: 91.5-92°C
Density: 0.5
g/cm3
Solubility in water:
poor
Vapour pressure, Pa at 197°C: 133
Flash point: 220°C c.c.
Octanol/water partition coefficient as log Pow: 1.6

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms. It is strongly advised that this substance does not enter the environment.

N O T E S

Depending on the degree of exposure, periodic medical examination is suggested. Ancamine TL, Araldite hardener 972, Epicure DDM, Slumicure M, Tonox are trade names. Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-61GT2-III

NFPA Code: H3; F1; R0;
Card has been partially updated in November 2008: see Occupational Exposure Limits

ADDITIONAL INFORMATION



ICSC: 1111 4,4'-METHYLENEDIANILINE
(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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