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
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. |
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.
Review Lab Capabilities for sample evaluation and qualification support, or Production Capabilities for scale-up, quality, documentation, and supply support.
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