International Chemical Safety Cards

HEPTACHLOR ICSC: 0743

HEPTACHLOR
1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methanoindene
1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-tetrahydro-4,7-methano-1H-indene
C10H5Cl7
Molecular mass: 373.3
CAS # 76-44-8
RTECS # PC0700000
ICSC # 0743
UN # 2761
EC # 602-046-00-2
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! AVOID ALL CONTACT! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

  • INHALATION

    		• Breathing protection.
    		Fresh air, rest. Refer for medical attention.
  • SKIN
    		• MAY BE ABSORBED!
    		Protective gloves. Protective clothing.
    		Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
  • EYES

    		• Safety goggles, 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

    		• Do not eat, drink, or smoke during work. Wash hands before eating.
    		Rinse mouth. Give a slurry of activated charcoal in water to drink. Rest. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Do NOT wash away into sewer. Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (extra personal protection: chemical protection suit including self-contained breathing apparatus).
    		Provision to contain effluent from fire extinguishing. Separated from strong oxidants, metals, food and feedstuffs. Well closed. Keep in a well-ventilated room.
    		Do not transport with food and feedstuffs.
    T symbol
    N symbol
    R: 24/25-33-40-50/53
    S: (1/2-)36/37-45-60-61
    UN Hazard Class: 6.1
    UN Packing Group: II
    Severe marine pollutant.
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0743 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    HEPTACHLOR ICSC: 0743

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    PHYSICAL STATE; APPEARANCE:
     WHITE CRYSTALS , WITH CHARACTERISTIC ODOUR.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     The substance decomposes on heating above 160°C producing toxic fumes including hydrogen chloride and other chlorine fumes. Reacts with strong oxidants. Attacks metal.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: 0.05 mg/m3 (as TWA), A3 (skin) (ACGIH 1997).
    OSHA PEL: TWA 0.5 mg/m3 skin
    NIOSH REL: Ca TWA 0.5 mg/m3 skin See Appendix A
    NIOSH IDLH: Potential occupational carcinogen 35 mg/m3


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation of dusts from powder concentrates, through the skin and by ingestion.

    INHALATION RISK:
     Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed, especially if powdered.




    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     This substance is possibly carcinogenic to humans.
    PHYSICAL
    PROPERTIES
    Boiling point at 0.2kPa: 135-145°C
    Melting point: 95-96°C
    Relative density (water = 1): 1.65-1.67
    		 Solubility in water: none
    Vapour pressure, Pa at 25°C: 0.053
    Octanol/water partition coefficient as log Pow: 5.27-5.44
    ENVIRONMENTAL
    DATA
         		The substance is very toxic to aquatic organisms. In the food chain important to humans, bioaccumulation takes place, specifically in fish, birds and milk. The substance may cause long-term effects in the aquatic environment.
    N O T E S
    Other melting points: 46-74°C for the technical product. Carrier solvents used in commercial formulations may change physical and toxicological properties. Aahepta, Agroceres, Basaklor, Drinox, Heptachlorane, Heptagran, Heptagranox, Heptamak, Heptamul, Heptasol, Heptox, Rhodiachlor, Soleptax, and Velsicol 104 are trade names.
    Transport Emergency Card: TEC (R)-61G41b.
    ADDITIONAL INFORMATION


    ICSC: 0743 HEPTACHLOR
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, 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. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and IDLH values.