COBALT (III) OXIDE (ICSC)

COBALT (III) OXIDE	ICSC: 0785

Date of Peer Review: April 2004

Dicobalt trioxide
Cobalt sesquioxide
Cobalt trioxide
Cobaltic oxide

CAS #	1308-04-9	Co₂O₃
RTECS #	GG2900000	Molecular mass: 165.9
UN #
EC #

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible.		In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST! STRICT HYGIENE!
Inhalation	Cough. Sore throat. Shortness of breath. Wheezing.	Local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin		Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	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. Nausea.	Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Personal protection: P2 filter respirator for harmful particles.

EU Classification
UN Classification

EMERGENCY RESPONSE

STORAGE

Separated from reducing agents and hydrogen peroxide.

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 Š IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK

COBALT (III) OXIDE

ICSC: 0785

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
BLACK-GREY CRYSTALLINE POWDER.

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

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as Co) 0.02 mg/mł as TWA; A3; BEI issued; (ACGIH 2004).
MAK not established.

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

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
May cause mechanical irritation.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation exposure may cause asthma. This specific compound has not been studied for carcinogenicity, but data from similar cobalt compounds indicate that it should be considered as being possibly carcinogenic to humans.

PHYSICAL PROPERTIES

Melting point (decomposes): 895°C
Density: 5.2 g/cmł
Solubility in water: none

ENVIRONMENTAL DATA

NOTES

Depending on the degree of exposure, periodic medical examination is suggested. Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance.

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

Š IPCS, CEC 1999

    See Also:
       Toxicological Abbreviations