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
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. |
Documents & Inquiry
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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.
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