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ortho-TOLUIDINEICSC: 0341
1-Amino-2-methylbenzene
2-Aminotoluene
o-Methylaniline
November 2009
CAS #: 95-53-4
UN #: 1708
EC Number: 202-429-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Above 85°C explosive vapour/air mixtures may be formed.  NO open flames.  Above 85°C use a closed system and ventilation. Prevent build-up of electrostatic charges (e.g., by grounding).  Use water spray, foam, powder, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS PREVENTION FIRST AID
Inhalation Blue lips, fingernails and skin. Confusion. Dizziness. Headache. Shortness of breath. Weakness. Convulsions. Nausea. Unconsciousness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin MAY BE ABSORBED! Redness. Blue lips, fingernails and skin. Further see Inhalation.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention. 
Eyes Redness. Pain.  Wear safety goggles.  Rinse with plenty of water (remove contact lenses if easily possible). Refer immediately for medical attention. 
Ingestion Blue lips, fingernails and skin. Dizziness. Headache. Laboured breathing. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

excl mark;warncancer;health hazenviro;aqua
DANGER
Combustible liquid
Harmful if swallowed or if inhaled
May be harmful in contact with skin
Causes serious eye irritation
May cause genetic defects
May cause cancer
Causes damage to blood
Very toxic to aquatic life 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 

STORAGE
Provision to contain effluent from fire extinguishing. Separated from strong oxidants, strong acids and food and feedstuffs. Well closed. Ventilation along the floor. Keep in the dark. Store in an area without drain or sewer access. 
PACKAGING
Do not transport with food and feedstuffs. 
ortho-TOLUIDINE ICSC: 0341
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. TURNS REDDISH-BROWN ON EXPOSURE TO AIR AND LIGHT. 

Physical dangers
As a result of flow, agitation, etc., electrostatic charges can be generated. 

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes including nitrogen oxides. Reacts with strong oxidants and strong acids. Attacks some forms of plastic. 

Formula: C7H9N / C6H4CH3NH2
Molecular mass: 107.2
Boiling point: 200°C
Melting point: -16°C (beta-form)
Melting point: -24.4°C (alpha-form)
Relative density (water = 1): 1.00
Solubility in water, g/100ml at 20°C: 1.62 (poor)
Vapour pressure, Pa at 25°C: 34.5
Relative vapour density (air = 1): 3.7
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 85°C c.c.
Auto-ignition temperature: 480°C
Explosive limits, vol% in air: 1.5-7.5
Octanol/water partition coefficient as log Pow: 1.43  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Effects of short-term exposure
The substance is severely irritating to the eyes. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated. See Notes. 

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying. 

Effects of long-term or repeated exposure
This substance is carcinogenic to humans. May cause genetic damage in humans. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 2 ppm as TWA; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans); BEI issued.
MAK: skin absorption (H); carcinogen category: 1; germ cell mutagen group: 3A 

ENVIRONMENT
The substance is very toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. 

NOTES
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.
The odour warning when the exposure limit value is exceeded is insufficient.
Do NOT take working clothes home.
See ICSCs 0342 and 0343. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T, N; R: 45-23/25-36-50; S: 53-45-61; Note: E 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations
       ortho-Toluidine  (IARC Summary & Evaluation, Supplement7, 1987)
       ortho-Toluidine  (IARC Summary & Evaluation, Volume 77, 2000)