Ammonium metavanadate
CAS 7803-55-6
EC 232-261-3
Formula H4N.O3V
MW 116.98 g/mol
Salts & Minerals Mining & MetalsPharmaceuticals & Healthcare pH Regulation & BufferingCatalysis
Description
Ammonium metavanadate (CAS 7803-55-6), also known as ammonium vanadate or NH4VO3, is an inorganic vanadium salt supplied as a crystalline solid. It carries no assigned E-code and is classified under HS code 28419000. It belongs to the salts and minerals category and is commercially available under several trade designations including ammonium m-vanadate.
In mining and metallurgy, ammonium metavanadate serves as a precursor in vanadium recovery circuits, where thermal decomposition yields vanadium pentoxide for alloy production. In catalysis, it functions as an active component or promoter in oxidation reactions, facilitating selective conversion of organic substrates. Pharmaceutical and laboratory applications exploit its buffering capacity to maintain controlled pH conditions in reaction media.
Ammonium metavanadate is supplied in technical and reagent grades and falls under REACH registration requirements within the European Union. Packaging is available in multi-kilogram drums and bulk formats suited to industrial procurement. Buyers should confirm grade specifications and SDS documentation prior to ordering.
In mining and metallurgy, ammonium metavanadate serves as a precursor in vanadium recovery circuits, where thermal decomposition yields vanadium pentoxide for alloy production. In catalysis, it functions as an active component or promoter in oxidation reactions, facilitating selective conversion of organic substrates. Pharmaceutical and laboratory applications exploit its buffering capacity to maintain controlled pH conditions in reaction media.
Ammonium metavanadate is supplied in technical and reagent grades and falls under REACH registration requirements within the European Union. Packaging is available in multi-kilogram drums and bulk formats suited to industrial procurement. Buyers should confirm grade specifications and SDS documentation prior to ordering.
Physical Properties
| Melting Point | 200 °C (decomp) |
| Density | 2.326 g/cm³ |
| Appearance | Ammonium metavanadate is a white or slightly yellow crystalline powder. It is an inorganic acidic salt |
| Color | White to yellow |
| Odor | Odorless |
| Form | Solid |
| Water Solubility | 5.1 g/L (20 ºC) |
| pH | 7 (5.1g/l, H2O, 20℃) |
Safety & Handling (Learn More)
Danger GHS06 GHS07 GHS08 GHS09
H
H301H315H319H330H332H335H340H341H361H370H372H411
P
P203P260P261P264P270P271P273P280P284P316P317P318P319P320P321P330P391P405P501P264+P265P301+P316P302+P352P304+P340P308+P316P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 28419000 |
| UN Number | 2859 |
| ADR Class | 6.1 |
| Packing Group | II |
| Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| WGK (Germany) | 3 |
Other Names
azanium oxido(dioxo)vanadiumAMVNH4VO3AMMONIUM OXIDEAMMONIUM VANADATEAMMONIUM M-VANADATE
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Derivatives
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