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o-NITROTOLUENE ICSC: 0931
Date of Peer Review: April 2000

2-Nitrotoluene
1-Methyl-2-nitrobenzene
o-Methylnitrobenzene
o-Mononitrotoluene
ONT
CAS # 88-72-2 C7H7NO2 / C6H4(CH3)(NO2)
RTECS # XT3150000 Molecular mass: 137.1
UN # 1664
EC # 609-006-00-3
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames. NO contact with oxidants.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Risk of fire and explosion on contact with acid(s), oxidants.

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT GENERATION OF MISTS! STRICT HYGIENE!

Inhalation Headache. Blue lips or finger nails. Blue skin. Dizziness. Laboured breathing.
Local exhaust or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin MAY BE ABSORBED! (Further see Inhalation).
Protective gloves. Protective clothing.
Rinse and then wash skin with water and soap. Refer for medical attention. Wear protective gloves when administering first aid.
Eyes Redness. Pain.
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 Abdominal pain. (Further see Inhalation).
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment. Chemical protection suit including self-contained breathing apparatus.
Do not transport with food and feedstuffs. Marine pollutant.
EU Classification
Symbol: T, N
R: 23/24/25-33-51/53
S: (1/2-)-28-37-45-61
Note: [C]
UN Classification
UN Hazard Class: 6.1
UN Pack Group: II
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61S1664-L or 61GT1-II
NFPA Code: H 2; F 1; R 4;
Separated from food and feedstuffs. See Chemical Dangers. Well closed. Ventilation along the floor.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

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o-NITROTOLUENE ICSC: 0931
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
YELLOW TO COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on contact with strong oxidants, reducing agents, acids or bases producing toxic fumes, causing fire and explosion hazard. Attacks some forms of plastic, rubber, and coatings. On combustion, forms nitrogen oxides, carbon monoxide.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 2 ppm as TWA; (skin); (ACGIH 2004).
MAK: skin absorption (H); Carcinogen category: 2; Germ cell mutagen group: 3B; (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

INHALATION RISK:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes. The substance may cause effects on the blood, resulting in formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the liver, blood and testes.
PHYSICAL PROPERTIES
Boiling point: 222C
Melting point: -10C
Relative density (water = 1): 1.16
Solubility in water, g/100 ml at 20C: 0.044
Vapour pressure, kPa at 20C: 0.02
Relative vapour density (air = 1): 4.73
Flash point: 95C c.c.
Auto-ignition temperature: 420C
Explosive limits, vol% in air: 1.47-8.8
Octanol/water partition coefficient as log Pow: 2.3
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment.
NOTES
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Depending on the degree of exposure, periodic medical examination is suggested.
Card has been partly updated in April 2005. See section Occupational Exposure Limits.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor 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
IPCS, CEC 2004