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Oxides and peroxides

Vanadium oxide (V2O3)

Also known as Vanadium(III) oxide, Vanadium trioxide, Vanadic oxide

CAS 1314-34-7Formula O3V2Molar mass 149.89 g/molEC 215-230-9
GHS signal word: Warning. Pictograms: Harmful or irritant 4 suppliers listed
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Vanadium oxide (V2O3) chemical structure, O3V2, CAS 1314-34-7
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Black powder
Melting point
1,940 °C
Boiling point
Ca. 3000
Density
4.87 g/cm³
Solubility
In water, 0.01 g/100 mL at 20 °C
HS code
282530
Category
Oxides and peroxides
UN number
UN 3285
Illustrative photo, black powder in an open woven sack in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Vanadium oxide (V2O3)?

Plain description, key identifiers and synonyms

Vanadium trioxide appears as a black crystalline solid. Density 4.87 g / cm3. Slightly soluble in water. Irritating to skin and eyes. May be toxic by ingestion. Used to make other chemicals. Used as a catalyst.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
oxo(oxovanadiooxy)vanadium
CAS number
1314-34-7 CAS number cross-checked
EC number
215-230-9
Molecular formula
O3V2
UNII
Y469L16CWH
InChIKey
KFAFTZQGYMGWLU-UHFFFAOYSA-N
InChI
InChI=1S/3O.2V
SMILES (canonical and isomeric)
O=[V]O[V]=O

Synonyms

  • Vanadium(III) oxide
  • Vanadium trioxide
  • Vanadic oxide
  • Vanadium sesquioxide
  • VO3 cpd
  • Vanadium(3+) oxide
  • Vanadium oxide, sesqui
  • oxo((oxovanadio)oxy)vanadium
  • Divanadium trioxide
  • oxo(oxovanadiooxy)vanadium
  • 1-Oxa-2lambda5,3lambda5-divanadacycloprop-2-ene 2,3-dioxide
  • Vanadium(3)oxide
  • mu-Oxidobis(oxido)divanadium
  • Vanadium(III) oxide, 98%
  • Vanadium trioxide, nonfused form
  • Vanadium trioxide, v2o3
  • UN 2860
  • Vanadium(III) oxide, 99.99% trace metals basis

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Black powderexp.
Melting point
1,940 °Cexp.
Boiling point
Ca. 3000exp.
Density
4.87 g/cm³exp.
Solubility
In water, 0.01 g/100 mL at 20 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
149.89 g/molcalc.
Exact mass
149.8727 Dacalc.
LogP (octanol/water)
-0.31calc.
Topological polar surface area
43.37 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
5calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (17)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3285
Transport hazard class
6.1
Packing group
III

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Vanadium oxide (V2O3) suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 4 suppliers
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Where suppliers are based

4 suppliers in 3 countries

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Vanadium oxide (V2O3) price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Catalyst, e.g., when making ethanol from ethylene.

The most important application is as an alternative to V2O5 in the production of FeV, VAl master alloys, high-purity vanadium metal, and vanadium carbides and carbonitrides.

Industrial uses: Intermediate.

How it is made

Prepared by reduction of V2O5 with hydrogen or carbon monoxide.

It can be prepared by reduction of the pentoxide or ammonium metavanadate by natural gas, hydrogen or carbon.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Vanadium oxide (V2O3) is traded under.

HS 2825.30Indicative HS code

Vanadium oxides and hydroxides

World exports in 2024
$307M
−16.2% vs 2023, imports $323M
2019 to 2024
Top exporters
  1. China28.7%
  2. Brazil26.8%
  3. South Africa22.1%
Top importers
  1. United States20.6%
  2. Czech Republic20.4%
  3. South Korea16.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Vanadium oxide (V2O3) is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Vanadium oxide (V2O3), based on the data on this page

What is Vanadium oxide (V2O3)?

Vanadium trioxide appears as a black crystalline solid. Density 4.87 g / cm3. Slightly soluble in water. Irritating to skin and eyes. May be toxic by ingestion. Used to make other chemicals. Used as a catalyst.

What is the CAS number of Vanadium oxide (V2O3)?

The CAS registry number of Vanadium oxide (V2O3) is 1314-34-7.

What is the molecular formula and weight of Vanadium oxide (V2O3)?

The molecular formula of Vanadium oxide (V2O3) is O3V2 and its molar mass is 149.89 g/mol.

What is Vanadium oxide (V2O3) used for?

Catalyst, e.g., when making ethanol from ethylene. The most important application is as an alternative to V2O5 in the production of FeV, VAl master alloys, high-purity vanadium metal, and vanadium carbides and carbonitrides. Industrial uses: Intermediate.

Is Vanadium oxide (V2O3) hazardous?

Vanadium oxide (V2O3) carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation, harmful if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Vanadium oxide (V2O3)?

Vanadium oxide (V2O3) is usually classified under HS code 282530 (Vanadium oxides and hydroxides). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Vanadium oxide (V2O3)?

CompoundList lists 4 suppliers of Vanadium oxide (V2O3) in United States, Germany and India. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Vanadium oxide (V2O3) in India?

1 supplier in India list Vanadium oxide (V2O3) on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Vanadium oxide (V2O3)?

Suppliers quote Vanadium oxide (V2O3) on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Vanadium oxide (V2O3)

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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