What is Tetravanadium Heptoxide?
Tetravanadium Heptoxide
Tetravanadium Heptoxide (V4O7) is an evidence-pending mixed-valence vanadium oxide for phase, IR-shielding, and catalysis research review.
Technical owner: Aurexene Materials Engineering Team · Last updated: 2026-06-18
Quick Answer
Tetravanadium Heptoxide (V4O7) is a mixed-valence Magneli-phase vanadium oxide research material. It is not the VO2 thermochromic route or the V2O5 electrochromic electrode route, and any optical-control use remains evidence-pending.
What It Is Not
- Tetravanadium Heptoxide is V4O7, not VO2, V2O3, or V2O5.
When Not to Use It
- Do not use V4O7 when phase-pure VO2 switching or V2O5 precursor chemistry is required.
Intrinsic Screening Summary
- Identity screen
- V4O7; Magneli-phase vanadium oxide particles
- Material-level integration
- Use when evaluating evidence-pending IR Shielding Coatings or Catalysis formulations and phase-review systems.
Application Fit
Selection & Validation Framework
| Decision Question | Material-Level Answer |
|---|---|
| Integration and processing criteria | Required for: IR Shielding Coatings and Catalysis. Measure: visible transmission; haze; color coordinates; NIR transmission; particle distribution; settling; redispersion; adhesion; film continuity; aging durability; storage stability; moisture exposure. Sample state: final coating thickness. Failure signals: Use when evaluating evidence-pending IR Shielding Coatings or Catalysis formulations and phase-review systems.. |
Material Identity & Specification Status
Approved values for CAS / identity, Particle size, Density, Purity, and Packaging are not published; confirm them during quotation or sample review.
| Property | Value |
|---|---|
| Composition | V4O7 |
| Morphology | Magneli-phase vanadium oxide particles |
| Storage | Dry sealed container |
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Technical Guides
| Technical Guide | Summary |
|---|---|
| How Phase Purity and Stoichiometry Change the Optical Response of NIR-Shielding Powders | Nominal formula does not fix an NIR powder's optical response. |
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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