What is Ammonium Metavanadate?
Ammonium Metavanadate
Ammonium Metavanadate (NH4VO3) is an ammonium-bearing vanadate precursor powder. Its precursor chemistry and decomposition route separate it from V2O5 oxide feedstock and sodium metavanadate.
Technical owner: Aurexene Materials Engineering Team · Last updated: 2026-06-18
What It Is Not
- Ammonium Metavanadate is not vanadium pentoxide or sodium metavanadate; it is the ammonium salt NH4VO3.
When Not to Use It
- Do not use Ammonium Metavanadate when sodium-free processing is not the issue and the required precursor, decomposition route, or counter-ion is explicitly different.
Intrinsic Screening Summary
- Identity screen
- NH4VO3; Ammonium metavanadate precursor powder
- Intrinsic feature
- Keep NH4VO3 precursor identity, volatile ammonium-bearing decomposition products, impurity profile, and converted vanadium state separate from V2O5 oxide-feedstock identity.
- Material-level integration
- Track vanadium basis, moisture, trace anions, dissolution or impregnation behavior, decomposition, calcination, and conversion yield. Do not transfer a V2O5 oxide-feedstock condition to NH4VO3 without a matched conversion study.
Application Fit
Selection & Validation Framework
| Decision Question | Material-Level Answer |
|---|---|
| Material profile validation | Required for: Catalysis and Negative Thermal Expansion (NTE) Systems. 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 | NH4VO3 |
| CAS / identity | 7803-55-6 |
| Morphology | Ammonium metavanadate precursor powder |
| Density | 2.326 g/cm3 at 25 C |
| Storage | Dry sealed container |
Why It Works
| Structure | Function | Mechanism |
|---|---|---|
| NH4VO3; Ammonium metavanadate precursor powder | Ammonium-bearing vanadium precursor whose decomposition and conversion history are part of the material route. | Keep NH4VO3 precursor identity, volatile ammonium-bearing decomposition products, impurity profile, and converted vanadium state separate from V2O5 oxide-feedstock identity. |
Compare Material Routes
| Material / Route | Decision Boundary |
|---|---|
| Vanadium Pentoxide | Ammonium Metavanadate is an ammonium-bearing precursor route whose solubility, decomposition, and conversion sequence can be evaluated independently. Vanadium Pentoxide is the oxide feedstock; compare vanadium basis, impurities, conversion route, volatile products, residue, and final phase rather than treating equal vanadium content as equal processing. |
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. |
| 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. |
| Controlling Vanadium Loading, Support Penetration, and Coating Uniformity in SCR Catalyst Production | Controlling Vanadium Loading, Support Penetration, and Coating Uniformity in SCR Catalyst Production — 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. |
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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