4-Methyl-m-phenylenediamine
2,4-Diaminotoluene
2,4-TDA
C7H10N2 / CH3C6H3(NH2)2
Molecular mass: 122.2
ICSC # 0582
CAS # 95-80-7
RTECS # XS9625000
UN # 1709
EC # 612-151-00-5
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Water spray, foam, powder, carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
AVOID ALL CONTACT!
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•Inhalation
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Cough.
Sore throat.
Blue lips or finger nails.
Blue skin.
Headache.
Dizziness.
Nausea.
Vomiting.
Confusion.
Convulsions.
Unconsciousness.
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Redness.
Pain.
(See Inhalation).
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
Severe deep burns.
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Safety goggles,
(if molten), face shield.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Do NOT wash away into sewer.
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Then remove to safe place.
Do NOT let this chemical enter the environment.
Personal protection:
chemical protection suit including self-contained breathing apparatus.
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Note: E
T symbol
N symbol
R: 45-20/21-25-36-43-51/53
S: 53-45-61
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS
CRYSTALS.
TURNS DARK ON Exposure TO AIR.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on burning
producing toxic fumes of nitrogen oxides.
Occupational Exposure Limits:
TLV not established.
MAK: skin absorption (H); sensitization of skin (Sh);
Carcinogen category: 2;
(DFG 2005).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol or vapour (when in molten state),
through the skin
and
by ingestion.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
irritates
the eyes,
the skin
and
the respiratory tract.
The hot liquid may cause severe skin burns.
The substance may cause effects on the
liver
and
blood
, resulting in liver damage and
formation of methaemoglobin.
The effects may be delayed.
Medical observation is indicated.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact may cause skin sensitization.
This substance is possibly carcinogenic to humans.
May cause genetic damage in humans.
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Physical
Properties
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Boiling point: 292°C
Melting point: 99°C
Relative density (water = 1): see Notes
Solubility in water:
good
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Vapour pressure, kPa at 106.5°C: 0.13
Relative vapour density (air = 1): 4.2
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 149°C
Octanol/water partition coefficient as log Pow: 0.35
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Environmental
Data
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The substance is harmful to aquatic organisms.
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N O T E S
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May be handled and shipped in the molten state. Density of the solid is unknown in literature, but density of the liquid (water = 1) at 100°C is 1.045.
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Azogen Developer H, Benzofur MT, Eucanine GB, Fouramine, Fourrine, Pelagol, Pontamine Developer TN, Tertral G, Zoba GKE, and Zogen Developer H are trade names.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-61GT2-III
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ADDITIONAL INFORMATION
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ICSC: 0582
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2,4-TOLUENEDIAMINE
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(C) IPCS, CEC, 1994
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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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