International Chemical Safety Cards

VANADIUM TRIOXIDE ICSC: 0455
VANADIUM TRIOXIDE
Vanadium sesquioxide
Divanadium trioxide
Vanadic oxide
V2O3
Molecular mass: 149.9
CAS # 1314-34-7
RTECS # YW3050000
ICSC # 0455
UN # 2860 (non-fused form)
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


 
EXPOSURE
PREVENT DISPERSION OF DUST!

INHALATION Runny nose. Sneezing. Cough. Diarrhoea. Laboured breathing. Sore throat. Weakness. Pain in chest. Green to black tongue.
Ventilation (not if powder), local exhaust, or breathing protection.
Fresh air, rest. Refer for medical attention.
SKIN Dry skin. Redness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
EYES Redness.
Safety goggles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION Headache. Vomiting. Weakness.
Do not eat, drink, or smoke during work.
Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Sweep spilled substance into containers. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment (extra personal protection: P2 filter respirator for harmful particles).
Separated from food and feedstuffs. Under inert atmosphere to avoid slow oxidation.
Do not transport with food and feedstuffs.
UN Hazard Class: 6.1
UN Packing Group: II
SEE IMPORTANT INFORMATION ON BACK
ICSC: 0455 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

VANADIUM TRIOXIDE ICSC: 0455

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PHYSICAL STATE; APPEARANCE:
BLACK POWDER, TURNS GRADUALLY INTO INDIGO-BLUE CRYSTALS OF VANADIUM TETRAOXIDE (V2O4) ON EXPOSURE TO AIR.

PHYSICAL DANGERS:
Ignites on heating in air.

CHEMICAL DANGERS:
The substance decomposes on heating or on burning producing irritating and toxic fumes (vanadium oxides).

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV (as V2O3): ppm; 0.05 mg/m3 (ACGIH 1991-1992).


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.

EFFECTS OF SHORT-TERM EXPOSURE:
The aerosol irritates the eyes, the skin, and the respiratory tract. Inhalation of aerosol of this substance may cause conjunctivitis, rhinitis, bronchitis, and diarrhoea. The effects may be delayed. See Notes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the respiratory tract , resulting in chronic rhinitis and chronic bronchitis. May cause disturbances in liver and cardiac function.
PHYSICAL
PROPERTIES
 Melting point: 1940°C
Relative density (water = 1): 4.87
 Solubility in water: insoluble
ENVIRONMENTAL
DATA
NOTES
Depending on the degree of exposure, periodic medical examination is indicated. The symptoms of acute exposure do not become manifest until 1-6 days. Do NOT take working clothes home. Also consult ICSC # 0596 Vanadium pentoxide.
ADDITIONAL INFORMATION


ICSC: 0455 VANADIUM TRIOXIDE
© 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.