IPCS INCHEM Home
1,2-DICHLORO-4-NITROBENZENEICSC: 0254
October 2008
CAS #: 99-54-73,4-Dichloronitrobenzene
3,4-Dichloro-1-nitrobenzene
1-Nitro-3,4-dichlorobenzene
UN #: 1578
EINECS #: 202-764-2

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.  Use powder, water spray, foam, carbon dioxide.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough.  Use ventilation (not if powder).  Fresh air, rest. 
Skin   Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety spectacles.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment. 

According to UN GHS Criteria

excl mark;warn
WARNING
Harmful if swallowed
Toxic to aquatic life 

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

STORAGE
Separated from strong oxidants, strong bases and food and feedstuffs. Provision to contain effluent from fire extinguishing. 
PACKAGING
Do not transport with food and feedstuffs. 
1,2-DICHLORO-4-NITROBENZENE ICSC: 0254
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-TAN NEEDLE-LIKE CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes of nitrogen oxides and hydrogen chloride (see ICSC 0163). Reacts violently with oxidants and strong bases. 

Formula: C6H3Cl2NO2
Molecular mass: 192.0
Boiling point: 255°C
Melting point: 39-41°C
Density (at 15°C): 1.56 g/cm³
Solubility in water: none
Vapour pressure, Pa at 25°C: 2
Relative vapour density (air = 1): 6.6
Flash point: 124°C
Auto-ignition temperature: 420°C
Octanol/water partition coefficient as log Pow: 3.12  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by ingestion. 

Effects of short-term exposure
 

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
MAK: skin absorption (H); carcinogen category: 3B 

ENVIRONMENT
The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Health effects of exposure to the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
 

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
       1,2-Dichloro-4-nitrobenzene (SIDS)