Bismuth Subcarbonate Powder
Bismuth subcarbonate (Bi2O2CO3) is a white, odorless powder classified under HTS 2836.99.20.00 as a bismuth carbonate, a basic carbonate of an inorganic base. It is primarily used in pharmaceuticals as an antacid and in cosmetics for its mild astringent properties.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified primarily as bismuth oxide rather than carbonate
Products with higher oxide content may shift to oxide heading; Chapter notes specify carbonates of inorganic bases.
If when pre-formulated into finished medicinal tablets or suspensions
Mixed or compounded with excipients for retail therapeutic use, falls under medicaments rather than pure chemical.
If incorporated into synthetic organic coloring pigments
If used as pigment base in paints/dyes, reclassified from pure chemical to manufactured pigment heading.
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Import Tips & Compliance
• Verify purity and chemical composition via certificate of analysis to confirm classification as chemically defined bismuth carbonate per Chapter 28 notes
• Include Safety Data Sheet (SDS) and end-use declaration to avoid misclassification as pharmaceutical preparations under Chapter 30
• Ensure packaging complies with US DOT hazardous materials regs if shipped in bulk quantities over 5kg
Related Products under HTS 2836.99.20.00
Pharmaceutical Grade Bismuth Carbonate
High-purity bismuth carbonate meeting USP standards for use in gastrointestinal remedies and ointments. Classified specifically under HTS 2836.99.20.00 as a carbonate of bismuth (inorganic base) per Chapter 28 note 2. Supplied as fine white microcrystalline powder.
Technical Grade Bismuth Carbonate
Industrial-grade bismuth carbonate used in ceramic glazes, catalysts, and radiation shielding compounds. HTS 2836.99.20.00 classification applies to this carbonate of inorganic base bismuth, distinct from oxides or other salts.
Bismuth Subnitrate Equivalent Carbonate
Synthetic bismuth subcarbonate serving as alternative to traditional subnitrate in astringent creams and lotions. Precisely classified under 2836.99.20.00 for its carbonate composition meeting Chapter 28 chemical definition.
High-Purity Bismuth Carbonate USP/EP
Dual-compendial (USP/EP) bismuth carbonate for global pharmaceutical supply chains, classified as HTS 2836.99.20.00 pure bismuth carbonate. Used in compounded prescriptions and veterinary medicines.