What is Vanadium Pentoxide?
Vanadium Pentoxide
Vanadium Pentoxide (V2O5) is an orthorhombic vanadium oxide powder and an electrochromic active- or counter-electrode candidate. Oxide-feedstock identity and density context distinguish it from ammonium and sodium metavanadate precursor routes; glazing use requires device-level validation.
Technical owner: Aurexene Materials Engineering Team · Last updated: 2026-06-18
Quick Answer
Vanadium Pentoxide (V2O5) is an orthorhombic vanadium oxide and an evidence-gated electrochromic active- or counter-electrode candidate. Validate composition, film formation, electrolyte compatibility, optical modulation, charge balance, cycling, and durability in the complete device.
What It Is Not
- Vanadium Pentoxide is V2O5, not V2O3, VO2, V4O7, or a metavanadate salt.
When Not to Use It
- Do not use V2O5 when a lower vanadium oxidation state, metavanadate salt, or sodium- or ammonium-specific precursor route is required.
Intrinsic Screening Summary
- Identity screen
- V2O5; Orange-yellow to yellow-red-brown orthorhombic powder context
- Intrinsic feature
- Keep V2O5 phase identity, oxidation state, impurity profile, dissolution or reduction route, and converted vanadium state explicit through processing.
- Material-level integration
- Track V2O5 phase, vanadium basis, moisture, impurities, dissolution or reduction behavior, insolubles, and conversion yield. Do not apply an NH4VO3 decomposition or impregnation condition to V2O5 without a matched oxide-feedstock study.
Application Fit
Selection & Validation Framework
| Decision Question | Material-Level Answer |
|---|---|
| Material profile validation | Required for: Catalysis, Energy Storage, Negative Thermal Expansion (NTE) Systems, and Smart Glazing. Measure: identity; handling state; application acceptance criteria. Sample state: final host formulation or part state. Failure signals: application target is unmet; host compatibility is unresolved. |
Material Identity & Specification Status
Approved values for Particle size, Purity, and Packaging are not published; confirm them during quotation or sample review.
| Property | Value |
|---|---|
| Composition | V2O5 |
| CAS / identity | 1314-62-1 |
| Morphology | Orange-yellow to yellow-red-brown orthorhombic powder context |
| Density | 3.36 g/cm3 intrinsic V2O5 density |
| Storage | Dry sealed container |
Why It Works
| Structure | Function | Mechanism |
|---|---|---|
| V2O5; Orange-yellow to yellow-red-brown orthorhombic powder context | Vanadium oxide feedstock whose oxide phase, density context, and conversion behavior differ from ammonium-bearing vanadate precursors. | Keep V2O5 phase identity, oxidation state, impurity profile, dissolution or reduction route, and converted vanadium state explicit through processing. |
Compare Material Routes
| Material / Route | Decision Boundary |
|---|---|
| Ammonium Metavanadate | Vanadium Pentoxide provides a direct oxide-feedstock route with V2O5 phase and density context available for incoming-material review. Ammonium Metavanadate is an ammonium-bearing precursor; compare vanadium basis, impurities, dissolution or impregnation, decomposition, residue, conversion yield, and final phase. |
Technical Guides
| Technical Guide | Summary |
|---|---|
| Acid Composition, Vanadium Concentration, Temperature, and Electrolyte Precipitation | Acid Composition, Vanadium Concentration, Temperature, and Electrolyte Precipitation — a method-conditioned engineering guide for Vanadium Feedstocks for Redox-Flow Battery Electrolyte Production covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
| Alkali, Chloride, Sulfur, Heavy-Metal, and Insoluble-Residue Poisoning from Vanadium Precursors | Alkali, Chloride, Sulfur, Heavy-Metal, and Insoluble-Residue Poisoning from Vanadium Precursors — a method-conditioned engineering guide for Catalysis covering vanadium oxidation state, surface vanadate structure, titania support dispersion, promoter interaction, and gas-reaction selectivity, process limits, validation, and qualification boundaries. |
| Balancing Film Thickness, Visible Transmission, Solar Modulation, Color, and Durability | Balancing Film Thickness, Visible Transmission, Solar Modulation, Color, and Durability — a method-conditioned engineering guide for Smart Glazing covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
| Characterizing Vanadium Precursor Assay, Solubility, Impurities, and Loading Uniformity | Characterizing Vanadium Precursor Assay, Solubility, Impurities, and Loading Uniformity — a method-conditioned engineering guide for Industrial SCR DeNOx Catalyst Precursors covering vanadium oxidation state, surface vanadate structure, titania support dispersion, promoter interaction, and gas-reaction selectivity, process limits, validation, and qualification boundaries. |
| Choosing a Measurement Method Based on the Engineering Decision It Must Support | Choosing a Measurement Method Based on the Engineering Decision It Must Support — a method-conditioned engineering guide for Catalysis covering structure-function behavior at the material, interface, and finished-system boundary, process limits, validation, and qualification boundaries. |
Commercial Availability
Supplier role: Request confirmation
Supply status: Request confirmation
Sample status: Sample availability requires confirmation
Commercial details are not published until the source and verification fields are complete and the Supplier Data Packet is signed by the sales owner, technical reviewer, and resource/compliance owner. Request current grade, form, sample, packaging, and delivery confirmation.
Documents & Inquiry
Document access follows the current approval state. Unapproved or unavailable files route to a document request instead of a public download.
Technical Data Sheet
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Safety Data Sheet
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Grade, Sample & Qualification Support
The Aurexene Materials Engineering Team can review the required form, host system, formulation or process, target, sample quantity, volume and timeline, and the grade-specific evidence needed before qualification.
Review Lab Capabilities for sample evaluation and qualification support, or Production Capabilities for scale-up, quality, documentation, and supply support.
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