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1,2-DICHLORO-4-NITROBENZENE
ICSC: 0254
Peer-Review Status: 04.10.2008 Validated
3,4-Dichloronitrobenzene
3,4-Dichloro-1-nitrobenzene
1-Nitro-3,4-dichlorobenzene 
CAS #: 99-54-7 RTECS #: CZ5250000
UN #: 1578
EINECS #: 202-764-2
    Formula: C6H3Cl2NO2
Molecular mass: 192.0

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.  Use powder, water spray, foam, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Prevent deposition of dust. Closed system, dust explosion-proof electrical equipment and lighting.   
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
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
PACKAGING & 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.  Do not transport with food and feedstuffs. 
EC Classification
 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
Signal: Warning
Harmful if swallowed
Toxic to aquatic life 
excl mark;warn

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61S1578 .  Separated from strong oxidants, strong bases and food and feedstuffs. Provision to contain effluent from fire extinguishing. 

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

Physical dangers
 

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

Occupational exposure limits
TLV (NOT-ESTABLISHED):.
MAK: Carcinogen category: 3B; Skin absorption (H); (DFG 2007). 

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

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 short-term exposure
 

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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  
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
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       1,2-Dichloro-4-nitrobenzene (SIDS)