- Vanadic anhydride
- Vanadium(V) oxide
- Divanadium pentoxide
A yellow to red crystalline powder.
Chemical intermediate, principally a chemical intermediate for vanadium alloys & compounds, oxidation catalyst in many industrial synthesis processes, catalyst in manufacture of sulfuric acid (contact process), oxidation catalyst in automobile catalytic converters, additive to glass for screening uv radiation.
Registry Numbers and Inventories.
EC Index Number
Mutagenic Category 3; Toxic for reproduction Category 3; Toxic; Harmful; Irritant; Dangerous for the Environment
R 20/22 37 40 48/23 51/53 63
S 36/37 38 45 61
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Solubility in water
Heat of fusion
Hazards and Protection.
Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Wash hands before eating. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Sweep up, then place into a suitable container for disposal.
Stable under normal temperatures and pressures.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
Container may explode in heat of fire. When heated to decomposition, it emits acrid smoke and fumes of vanadium oxides. Material is not flammable but it may increase the intensity of the fire when in contact with combustible materials. Avoid chlorine trifluoride; lithium; peroxyformic acid; and calcium, sulfur, water complexes.
Fire may produce irritating, corrosive and/or toxic gases.
TLV (respirable dust or fume, as V2O5): 0.05 mg/m3 A4 (TWA) (ACGIH 1996). MAK: 0.05 mg/m3; (1996).
Neurologic disorders, including nervous depression, psychiatric disturbances, and tremors have been seen in connection with exposure to vanadium pentoxide. Vanadium pentoxide has been shown to be teratogenic in the hamster and mouse.
May be fatal if swallowed. May cause central nervous system effects. Symptoms include excess salivation, vomiting and diarrhea. High concentrations may cause drowsiness, convulsions, unconsciousness and central nervous system damage.
May cause respiratory tract irritation. May cause effects similar to those described for ingestion. May cause lung damage. May cause asthma and shortness of breath.
May cause skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
May cause eye irritation. May cause conjunctivitis.
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
USCG CHRIS Code
Std. Transport #