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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If natural mineral form
Natural steatite or unrefined carbonates fall in Chapter 25, not refined Chapter 28.
If refractory cement mixtures
If mixed for refractory cements, goes to 3816 per Chapter 28 exclusions.
If barium variant
Specific metal carbonates like barium have dedicated subheadings in 2836.
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Import Tips & Compliance
• Include impurity analysis (<5% other metals) to affirm 'chemically defined'; use proper UN packaging for powders
• Common error: bulk import as 'mineral mixture' to 25xx
Related Products under HTS 2836.99.50.10
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.
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.
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.