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
NH4VO3ammonium vanadate
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
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. |
Documents & Inquiry
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Technical Data Sheet
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Safety Data Sheet
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Grade, Sample & Qualification Support
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