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1-CHLORO-2,4-DINITROBENZENE ICSC: 0416
Date of Peer Review: October 1999

1,3-Dinitro-4-chlorobenzene
2,4-Dinitrophenyl chloride
DNCB
CAS # 97-00-7 C6H3ClN2O4 / C6H3Cl(NO2)2
RTECS # CZ0525000 Molecular mass: 202.6
UN # 1577
EC Index # 610-003-00-4
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.
Water spray, foam, powder, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Do NOT expose to friction or shock.
In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.
EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

Inhalation Blue lips or finger nails. Blue skin. Dizziness. Headache. Laboured breathing. Nausea. Vomiting. Disturbed vision.
Local exhaust or breathing protection.
Fresh air, rest. Artificial respiration may be needed. Refer for medical attention.
Skin MAY BE ABSORBED! Redness. Pain. (Further see Inhalation).
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
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. Blue skin. Dizziness. Headache. Laboured breathing. Nausea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Wear protective gloves when inducing vomiting. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Vacuum spilled material then 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: 23/24/25-33-50/53
S: (1/2-)-28-36/37-45-60-61
Note: [C]
UN Classification
UN Hazard Class: 6.1
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61S1577-S or 61GT2-II
NFPA Code: H 3; F 1; R 4
Fireproof. Separated from strong oxidants, strong bases, food and feedstuffs. Cool.
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 2005

SEE IMPORTANT INFORMATION ON BACK
1-CHLORO-2,4-DINITROBENZENE ICSC: 0416
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
PALE YELLOW CRYSTALS, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
May explosively decompose on shock, friction, or concussion. May explode on heating even in the absence of air. Reacts with strong oxidants and strong bases. On combustion, forms toxic and corrosive gases and fumes including hydrogen chloride and nitrogen oxides.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK: sensitization of skin (Sh); (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and 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 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the respiratory tract and is severely irritating to the skin. The substance may cause effects on the blood, resulting in formation of methaemoglobin. Exposure to high concentrations may result in death.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the nervous system, resulting in impaired vision.
PHYSICAL PROPERTIES
Boiling point: 315C
Melting point: 54C
Density: 1.7 g/cm
Solubility in water: none
Vapour pressure, Pa at 20C: negligible
Flash point: 179C
Auto-ignition temperature: 432C
Explosive limits, vol% in air: 2.0-22
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms.
NOTES
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
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 2005