Cobaltous Carbonate Technical Grade
Technical-grade cobaltous carbonate (CoCO3, 45-50% Co) is supplied as fine powder for catalyst manufacturing and glass coloring. It qualifies for HTS 2836.99.10.00 as a pure cobalt carbonate compound under Chapter 28 definitions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If calcined to cobalt oxide form
Thermal decomposition products are cobalt oxides under 2822.
If containing carbides impurities
Carbides classified in 2849 per Chapter note exclusions.
If doped for electronic catalysts
Doped chemical elements may go to 3815 per semiconductor notes.
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Import Tips & Compliance
• Test for carbonate ion (CO3^2-) content >40%; low purity risks 3824 reclassification
• Declare cobalt percentage accurately; discrepancies trigger CBP lab analysis and penalties
• Use UN-approved packaging (4G fiber drums) for toxic solid classification
Related Products under HTS 2836.99.10.00
Cobalt(II) Carbonate Powder
Cobalt(II) carbonate (CoCO3) is a pinkish-white inorganic salt used primarily as a precursor in the production of cobalt oxide pigments and catalysts. It falls under HTS 2836.99.10.00 as a chemically defined cobalt carbonate, distinct from stabilized or complex forms excluded by Chapter 28 notes.
Basic Cobalt Carbonate Crystals
Basic cobalt carbonate (2CoCO3·3Co(OH)2) appears as rose-red crystals used in ceramics and as a cobalt source in animal feed supplements. Classified under HTS 2836.99.10.00 as it meets the definition of cobalt carbonates per subheading note, excluding peroxocarbonates.
Hydrated Cobalt Carbonate Precipitate
Hydrated cobalt carbonate (CoCO3·xH2O) precipitate from lab synthesis, used in analytical chemistry and small-scale pigment production. Falls under HTS 2836.99.10.00 as chemically defined cobalt carbonate, hydrated forms included.
Pharmaceutical Cobalt Carbonate USP
USP-grade cobalt carbonate meeting pharmacopeia standards for use in trace mineral supplements and vitamin formulations. Qualifies under HTS 2836.99.10.00 as pure cobalt carbonate, not medicinal preparations.
Cobalt Carbonate for Porcelain Glaze
High-purity cobalt carbonate specifically graded for blue porcelain and ceramic glazes, providing intense color development at high firing temperatures. Classified in HTS 2836.99.10.00 as it is a simple inorganic cobalt carbonate salt.
Cobalt Carbonate Catalyst Precursor
Cobalt carbonate used as precursor for Fischer-Tropsch synthesis catalysts, decomposing to active cobalt oxide phases. HTS 2836.99.10.00 applies to this chemically defined carbonate before thermal processing.