International Chemical Safety Cards

1-CHLORO-2,4-DINITROBENZENE ICSC: 0416
1-CHLORO-2,4-DINITROBENZENE
1,3-Dinitro-4-Chlorobenzene
2,4-Dinitrophenyl chloride
CDNB
C6H3Cl(NO2)2
Molecular mass: 202.6
CAS # 97-00-7
RTECS # CZ0525000
ICSC # 0416
UN # 1577
EC # 610-003-00-4
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.

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

  • INHALATION
    		• Blue lips or finger nails. Blue skin. Dizziness. Headache. Laboured breathing. Nausea. Vomiting. Disturbed vision. Effects may be delayed.
    		Local exhaust or breathing protection.
    		Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
  • SKIN
    		• MAY BE ABSORBED! Redness. Pain. Effects may be delayed. (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. Effects may be delayed.
    		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 STORAGE PACKAGING & LABELLING
    Consult an expert! Sweep spilled substance into sealable containers. then remove to safe place. (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    		Fireproof. Separated from strong oxidants, strong bases, food and feedstuffs. Dry. Keep in a well-ventilated room.
    		Do not transport with food and feedstuffs.
    T symbol
    R: 23/24/25-33
    S: 28-37-44
    UN Hazard Class: 6.1
    UN Packing Group: II
    marine pollutant.
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0416 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

    International Chemical Safety Cards

    1-CHLORO-2,4-DINITROBENZENE ICSC: 0416

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    PHYSICAL STATE; APPEARANCE:
     PALE YELLOW (rhombic )CRYSTALS , WITH CHARACTERISTIC ODOUR.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     Heating may cause violent combustion or explosion at about 149░C. The substance decomposes on heating producing toxic gases (oxides of nitrogen, chlorine - see ICSC # 0126, hydrogen chloride - see ICSC # 0163, phosgene - see ICSC # 0007). The substance is a strong oxidant and reacts with combustible and reducing materials.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV not established.
    MAK not established.


    		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 20░C.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the skin even after only minor contact , resulting in dermatitis (effects may be delayed), and the formation of methaemoglobin. Exposure to high concentrationsmay 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 vision.
    PHYSICAL
    PROPERTIES
    Boiling point: 315░C
    Melting point: 54░C
    Relative density (water = 1): 1.7
    Solubility in water: insoluble
    		 Relative vapour density (air = 1): 7.0
    Flash point: 194░C
    Explosive limits, vol% in air: 2.0-22
    ENVIRONMENTAL
    DATA
    N O T E S
    Combustion in a confined space may turn into detonation.
    Transport Emergency Card: TEC (R)-94
    NFPA Code: H3; F1; R4;
    ADDITIONAL INFORMATION


    ICSC: 0416 1-CHLORO-2,4-DINITROBENZENE
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither the CEC or 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. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.