Zirconium Carbonate Powder
Pure zirconium carbonate (Zr(CO3)2) in fine powder form, a chemically defined inorganic compound used in chemical synthesis and as a precursor for zirconia ceramics. It falls under HTS 2836.99.50.10 as a zirconium carbonate, distinct from peroxocarbonates or stabilized varieties. This white, odorless powder is soluble in acids and applied in high-temperature refractories.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If processed into zirconium oxide
Derived oxides like zirconia are classified under heading 2825 for vanadium oxides and other metal oxides, not carbonates.
If for industrial ceramic precursor sets
If sold as a prepared mixture with carbides or other additives for ceramics, it may fall under carbides of heading 2849 per Chapter 28 Note 2.
If blended with organic stabilizers
Stabilized with organic substances, it shifts to heading 2831 or other prepared chemical mixtures in 3824, excluded from Chapter 28 pure compounds.
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Import Tips & Compliance
• Verify chemical purity and provide Certificate of Analysis (COA) to confirm it meets 'chemically defined' criteria per Chapter 28/29 notes; ensure SDS for hazardous material handling
• Avoid misclassification as organo-inorganic compounds excluded by Chapter 28 Note 2(b)
Related Products under HTS 2836.99.50.10
Basic Zirconium Carbonate
Basic zirconium carbonate (Zr(OH)2·2ZrCO3), a hydrated compound used as a pigment and coating agent in paper manufacturing. Classified under HTS 2836.99.50.10 as a zirconium carbonate per subheading for other carbonates. It provides opacity and whiteness in specialty paper products.
Zirconium Subcarbonate Crystals
Crystalline zirconium subcarbonate, a partially carbonated form used in analytical chemistry and as a reagent. It is a chemically defined compound under HTS 2836.99.50.10, fitting the carbonates subheading excluding peroxo forms. These crystals are employed in lab synthesis of metal organics.
Hydrated Zirconium Carbonate
Hydrated zirconium carbonate (ZrCO3·xH2O), supplied as a slurry or powder for water treatment and flame retardants. Falls under HTS 2836.99.50.10 as other zirconium carbonates, chemically defined inorganic salt. It decomposes to zirconia upon heating for refractory applications.
Zirconium Ammonium Carbonate
Double salt of zirconium ammonium carbonate, used in textile dyeing and leather tanning processes. Classified as HTS 2836.99.50.10 for zirconium carbonates, applying Chapter 28 note on ammonium salts in 2826-2842 extended to carbonates. It acts as a mordant for colorfast dyes.
Technical Grade Zirconium Carbonate
Technical-grade zirconium carbonate for ceramic glaze production, containing minor impurities but chemically defined. Under HTS 2836.99.50.10 as other zirconium carbonates, excluded from Chapter 31 notes. It fluxes glazes at high firing temperatures.
Nano-Zirconium Carbonate Particles
Nanoparticulate zirconium carbonate (<100nm) for advanced catalysts and coatings. Remains under HTS 2836.99.50.10 as chemically defined carbonate, not doped electronics per Chapter note. Enhances catalytic efficiency in petrochemical processes.