Ammonium Molybdate Tetrahydrate
Ammonium molybdate tetrahydrate ((NH4)6Mo7O24·4H2O) is a laboratory reagent and catalyst precursor in chemical synthesis. Classified under HTS 2841.70.5000 as an 'other' molybdate, it qualifies as a salt of a peroxometallic or oxometallic acid per Chapter 28 notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing complex double salts with other metals
Chapter notes specify double or complex salts of metals/ammonium go to heading 2842.
If for use as a catalyst in supported form
Catalysts containing molybdates are classified in 3815 based on function, not pure chemical identity.
If imported as a component in diammonium phosphate fertilizers
Fertilizer specialties with molybdenum fall under Chapter 31 subheading 3105.30.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide assay certificates showing molybdenum content to distinguish from complex salts under 2842
• Declare as 'chemically defined' with exact CAS number (12054-85-2) to prevent reclassification as a preparation
• Comply with TSCA import requirements; notify EPA if annual volume exceeds 10,000 lbs
Related Products under HTS 2841.70.50.00
Sodium Molybdate Dihydrate
Sodium molybdate dihydrate (Na2MoO4·2H2O) is a white crystalline powder used as a source of molybdenum in fertilizers and nutritional supplements. It falls under HTS 2841.70.5000 as a molybdate salt of an oxometallic acid, specifically categorized as 'other' molybdates not elsewhere specified.
Potassium Molybdate Powder
Potassium molybdate (K2MoO4) is an inorganic salt used in pigments, electroplating, and as a corrosion inhibitor. It is classified in HTS 2841.70.5000 as 'other' molybdates, meeting the definition of oxometallic acid salts in Chapter 28.
Lithium Molybdate Crystals
Lithium molybdate (Li2MoO4) crystals serve as scintillators in radiation detectors and high-temperature electrolytes. Under HTS 2841.70.5000, it is an 'other' molybdate salt of an oxometallic acid, excluded from optical elements per Chapter notes.
Magnesium Molybdate Anhydrous
Magnesium molybdate (MgMoO4) anhydrous powder is utilized in flame retardants and ceramic glazes. It fits HTS 2841.70.5000 as 'other' molybdates, a salt of oxometallic acids not covered by Section V exclusions.
Zinc Molybdate Inhibitor Grade
Zinc molybdate (ZnMoO4) is a corrosion inhibitor pigment in protective coatings for metals. Classified as 'other' under HTS 2841.70.5000, it is a chemically defined molybdate salt per Chapter 28 definitions.