International Chemical Safety Cards

COBALT (III) OXIDE ICSC: 0785
COBALT (III) OXIDE
Dicobalt trioxide
Cobalt sesquioxide
Cobalt trioxide
Cobaltic oxide
Co2O3
Molecular mass: 165.9
CAS # 1308-04-9
RTECS # GG2900000
ICSC # 0785
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible.

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


EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

  • INHALATION
    		• Cough. Laboured breathing. Shortness of breath. Sore throat.
    		Local exhaust or breathing protection.
    		Fresh air, rest. Refer for medical attention.
  • SKIN
    		• Dry skin.
    		Protective gloves. Protective clothing.
    		Remove contaminated clothes. Rinse and then wash skin with water and soap.
  • EYES
    		• Redness.
    		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
    		• Abdominal pain. Vomiting.
    		Do not eat, drink, or smoke during work.
    		Give plenty of water to drink. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (extra personal protection: P3 filter respirator for toxic particles).
    		Separated from reducing agents and hydrogen peroxide.

    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0785 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

    COBALT (III) OXIDE ICSC: 0785

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    PHYSICAL STATE; APPEARANCE:
     BLACK-GRAY CRYSTALLINE POWDER

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     Reacts violently with hydrogen peroxide. Reacts with reducing agents.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV (as Co): 0.02 mg/m3 (as TWA) A3 (ACGIH 1997).


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

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

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes, the skin and the respiratory tract. Inhalation of aerosol may cause asthmatic reactions (see Notes).

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation exposure may cause asthma. Lungs may be affected by repeated or prolonged exposure. This substance is possibly carcinogenic to humans.
    PHYSICAL
    PROPERTIES
    Melting point (decomposes): 895░C
    Relative density (water = 1): 5.2
    		 Solubility in water: insoluble
    ENVIRONMENTAL
    DATA
    N O T E S
    Depending on the degree of exposure, periodic medical examination is indicated. The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance. C.I. 77323 is a trade name.
    ADDITIONAL INFORMATION


    ICSC: 0785 COBALT (III) OXIDE
    © 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.