High-purity V2O5 flakes are vanadium pentoxide materials used in metallurgy, vanadium alloy production and selected chemical applications. Vanadium pentoxide serves as an important intermediate in catalyst and energy-storage-related value chains.
Product Specifications
| Parameter |
V2O5 99% Flake |
V2O5 99.5% High-Purity Category |
| V2O5 |
99.0% min. |
About 99.5% typical in selected high-purity products |
| Si |
About 0.15-0.20% typical published limit |
Lower impurity profile required |
| Fe |
About 0.20% typical published limit |
Lower impurity profile required |
| P |
About 0.03% typical |
Application-specific |
| S |
About 0.01% typical |
Application-specific |
| As |
About 0.01% typical |
Application-specific |
| Na2O + K2O |
About 1.0% typical published limit |
Application-specific |
| Form |
Fused flake |
High-purity flake |
| Thickness |
Up to about 5 mm in metallurgical specifications |
Product-specific |
| Main use |
Metallurgy and alloy production |
High-purity alloy and industrial applications |
Product Grades
V2O5 99% Flakes
The 99% grade is a commercially established higher-purity V2O5 flake grade for metallurgical applications. This grade is suitable for buyers who require a higher V2O5 concentration than standard 98% feedstock.
V2O5 99.5% High-Purity Material
99.5% should be treated as a high-purity procurement category rather than an assumed universal specification. Some commercial high-purity V2O5 flake products are described with 99.0% guaranteed and 99.5% typical V2O5 content.
Size and Form Specifications
Published metallurgical V2O5 flake specifications include:
- Fused flake form
- Maximum thickness around 5 mm
- Maximum dimensions approximately 50 × 50 × 5 mm or 55 × 55 × 5 mm
Energy-storage and chemical applications may require further processing of V2O5 into powder, precursor or other material forms.
Primary Applications
Metallurgy
V2O5 flakes are primarily used as vanadium-bearing feedstock for ferrovanadium and other vanadium alloy production.
Catalyst Production
Vanadium pentoxide is used in catalyst manufacturing and chemical processing. Industry references identify catalysts among the major industrial applications of V2O5.
Energy Storage Materials
Vanadium compounds are used in vanadium-based energy-storage technologies, including vanadium redox flow battery systems. The required V2O5 purity, physical form and downstream processing route depend on the specific battery-material process.
Technical Requirements
For high-purity applications, the relevant specification chain is:
V2O5 purity → trace impurities → physical form → conversion process → final material requirement
For metallurgical use, flake dimensions and charging characteristics are important. For catalyst and energy-storage applications, buyers may additionally need:
- Trace-element limits
- Moisture specifications
- Particle-size requirements
- Specific surface or processing characteristics
- Precursor compatibility
Buyer Confirmation Checklist
- Product: V2O5 Flakes
- Grade: 99% or 99.5% high-purity specification
- Chemical composition: V2O5 and trace-element limits
- Size: Flake dimensions
- Form: Flake / fused flake
- Quantity: Required quantity
- Application: Metallurgy, catalyst or energy-storage material
- Destination: Destination port
- Packing: Required packaging
- Documents: COA, SDS and inspection requirements
Quality and Documentation
Common documentation includes:
- Certificate of Analysis
- Safety Data Sheet
- Packing List
- Batch information
- Inspection report where required
For energy-storage or catalyst applications, the COA should cover impurities relevant to the downstream material process.
Packing Information
Published V2O5 flake products are packed in industrial drums and bulk bags. Commercial examples include 200-250 kg drums and 1 MT bulk bags.
Frequently Asked Questions
What are 99% V2O5 flakes used for?
They are used mainly in vanadium metallurgy, ferrovanadium and vanadium alloy production, with additional chemical and catalyst applications.
What does 99.5% V2O5 mean?
It indicates a high-purity V2O5 category. In some commercial products, 99.5% is a typical assay while 99.0% is the guaranteed minimum.
Can V2O5 be used in energy-storage materials?
Yes. Vanadium pentoxide is part of the vanadium value chain used in battery and energy-storage applications, although the required material specification depends on the downstream process.
Can V2O5 flakes be used directly for catalyst production?
Some catalyst processes use V2O5, but many chemical and catalyst processes use powder or processed precursor forms. Buyers should confirm the required physical form.
What is the common size of V2O5 flakes?
Published metallurgical specifications include approximately 50-55 mm maximum dimensions and up to about 5 mm thickness.
Which impurities should high-purity buyers check?
Fe, Si, P, S, As and alkali metals are commonly considered, with additional trace elements depending on the application.
Is 99.5% always a guaranteed minimum?
No. A published commercial high-purity specification describes 99.5% as typical and 99.0% as guaranteed. Buyers should confirm the contractual basis of the quoted purity.
What information should energy-storage material buyers provide?
They should specify V2O5 purity, trace-element limits, physical form, particle requirements, quantity, application, destination, packing and required documentation.
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