Ammonium Metavanadate Sulfate
A double salt combining ammonium metavanadate with sulfuric acid derivatives, used in vanadium pigment manufacturing and steel alloying. Classified under HTS 2833.29.30.00 as a vanadium sulfate per notes on double salts in heading 2842 applying only to specific cases, but sulfates remain in 2833.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If vanadates of ammonium without sulfate
Ammonium vanadates are phosphinates, phosphonates, etc., but vanadates specifically under 2835, not sulfates.
If classified as complex salts of inorganic bases
Double or complex salts may shift to 2842 per Chapter Note on headings 2826-2842.
If mixed with fertilizers like calcium cyanamide derivatives
Products mentioned in Note 3 to Chapter 31 are excluded from Chapter 28.
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Import Tips & Compliance
• Label as 'chemically defined' with exact formula to distinguish from organo-inorganic compounds excluded by Chapter Note 2
• Provide end-use declarations if for industrial catalysts to prevent scrutiny under environmental regulations
• Ensure packaging prevents moisture absorption, as it can alter chemical structure and affect classification
Related Products under HTS 2833.29.30.00
Vanadium Pentoxide Sulfate
Vanadium pentoxide sulfate (V2O5·SO3) is a chemically defined inorganic compound used in catalysts for oxidation reactions and in the production of vanadium metal. It falls under HTS 2833.29.30.00 as a sulfate of vanadium, specifically classified among other vanadium sulfates due to its sulfate group and vanadium content.
Ferric Vanadium Sulfate
A mixed ferric-vanadium sulfate used in water treatment as a coagulant and in vanadium battery electrolytes. Classified in HTS 2833.29.30.00 for its primary vanadium sulfate composition, provided it meets chemical definition standards.
Vanadium(IV) Sulfate Hydrate
Vanadium(IV) sulfate pentahydrate (V(SO4)2·5H2O) serves as a reagent in chemical labs and vanadium redox flow batteries. It is a pure vanadium sulfate under HTS 2833.29.30.00, chemically defined per Chapter 28 notes.
Vanadyl Sulfate Powder
Vanadyl sulfate (VOSO4) is a blue crystalline powder used as a catalyst in organic synthesis and in nutritional supplements for vanadium content. It is classified under HTS 2833.29.30.00 as 'other sulfates of vanadium', meeting the chemically defined criteria of Chapter 28.
Sodium Vanadyl Sulfate
Sodium vanadyl sulfate is an inorganic salt employed in corrosion inhibitors for steel and in analytical chemistry reagents. It qualifies for HTS 2833.29.30.00 as a chemically defined sulfate of vanadium, distinct from excluded organo-inorganic compounds.