International Chemical Safety Cards

o-DICHLOROBENZENE ICSC: 1066
o-DICHLOROBENZENE
1,2-Dichlorobenzene
ortho-Dichlorobenzene
o-Dichlorobenzol
C6H4Cl2
Molecular mass: 147.0
CAS # 95-50-1
RTECS # CZ4500000
ICSC # 1066
UN # 1591
EC # 602-034-00-7

TYPES OF
HAZARD/
EXPOSURE
ACUTE HAZARDS/
SYMPTOMS
PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible.
NO open flames.
Powder, water spray, foam, carbon dioxide.
EXPLOSION Above 66C explosive vapour/air mixtures may be formed.
Above 66C use a closed system, ventilation.

EXPOSURE


  • INHALATION
  • Cough. Drowsiness. Sore throat. Unconsciousness.
    Ventilation, local exhaust, or breathing protection.
    Fresh air, rest. Refer for medical attention.
  • SKIN
  • Redness. Burning sensation. Symptoms may be delayed. Blisters.
    Protective gloves. Protective clothing.
    Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
  • EYES
  • Redness. Pain.
    Face shield.
    First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION
  • Burning sensation. Diarrhoea. Nausea. Vomiting.
    Do not eat, drink, or smoke during work.
    Rinse mouth. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE 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 (extra personal protection: filter A for organic vapours.
    Separated from strong oxidants, acids, food and feedstuffs and aluminum compounds.
    Do not transport with food and feedstuffs.
    Xn symbol
    N symbol
    R: 22-36/37/38-50/53
    S: (2-)23-60-61
    UN Hazard Class: 6.1
    UN Packing Group: III
    Marine pollutant.
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 1066 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

    o-DICHLOROBENZENE ICSC: 1066

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    PHYSICAL STATE; APPEARANCE:
    COLOURLESS TO PALE-YELLOW, VISCOUS LIQUID , WITH CHARACTERISTIC ODOUR.

    PHYSICAL DANGERS:


    CHEMICAL DANGERS:
    The substance decomposes on heating producing toxic and corrosive gases and fumes, e.g. hydrogen chloride. See ICSC 0163. Reacts with oxidants, acids, aluminium and its alloys.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
    TLV: 25 ppm; 150 mg/m3 (as TWA); 50 ppm; 301 mg/m3 (as STEL) (skin) (ACGIH 1995-1996).
    MAK: 50 ppm; 300 mg/m3; (1992).


    ROUTES OF EXPOSURE:
    The substance can be absorbed into the body by inhalation 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 vapour irritates the eyes, the skin and the respiratory tract. The liquid, left on the skin may produce blistering. The substance may cause effects on the the central nervous system. Exposure could cause lowering of consciousness.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the liver and kidneys.
    PHYSICAL
    PROPERTIES
    Boiling point: 180-183C
    Melting point: -17C
    Relative density (water = 1): 1.3
    Solubility in water: none
    Vapour pressure, kPa at 20C: 0.16
    Relative vapour density (air = 1): 5.1
    Relative density of the vapour/air-mixture at 20C (air = 1): 1.006
    Flash point: 66C c.c.
    Auto-ignition temperature: 648C
    Explosive limits, vol% in air: 2.2-9.2
    Octanol/water partition coefficient as log Pow: 3.38
    ENVIRONMENTAL
    DATA
    It is strongly advised not to let the chemical enter into the environment because it persists in the environment.
    N O T E S
    Protective clothing recommended (for more than 8 hours: Viton(TM)).
    Transport Emergency Card: TEC (R)-817
    NFPA Code: H2; F2; R0;
    ADDITIONAL INFORMATION


    ICSC: 1066 o-DICHLOROBENZENE
    © 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.