For use in refining minerals
Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. > Disodium carbonate > For use in refining minerals
Duty Rate (from China)
Products classified under Tariff item 2836.20.00.10
Anhydrous Soda Ash (Disodium Carbonate)
Anhydrous soda ash is a pure, chemically defined form of disodium carbonate (Na2CO3) used primarily as a flux in glass manufacturing to lower melting temperatures. It meets the criteria of Chapter 28 Note 1(a) as a separate chemically defined compound and is not excluded by any chapter note.
2836.20.00Calcined Soda Ash for Glass Production
Calcined soda ash is thermally processed disodium carbonate optimized for glass production, meeting Chapter 28 Note 1(a) as a chemically defined compound. The calcination process does not alter its chemical identity as Na2CO3, so it remains classified under this tariff item.
2836.20.00Dense Soda Ash (Light Soda Ash Alternative)
Dense soda ash is a high-density granular form of disodium carbonate produced via the Solvay process, used in detergents and chemical synthesis. As a chemically defined compound meeting Chapter 28 Note 1(a), it falls under this tariff item regardless of physical form.
2836.20.00Granular Disodium Carbonate 99.5% Purity
Granular disodium carbonate at 99.5% purity is a chemically defined compound used as a cleaning agent in industrial boilers and textile processing. It meets Chapter 28 Note 1(a) as a separate chemically defined compound, and the granular form does not affect classification.
2836.20.00Sodium Carbonate Monohydrate (Crystal Soda)
Sodium carbonate monohydrate (Na2CO3·H2O) is a hydrated crystalline form of disodium carbonate used in water treatment and as a pH buffer. As a chemically defined compound with water of crystallization, it falls under Chapter 28 Note 1(a) and is not excluded by any note.
2836.20.00Technical Grade Soda Ash 99.2%
Technical grade soda ash with 99.2% Na2CO3 purity is a chemically defined compound used in paper manufacturing and effluent treatment. It meets Chapter 28 Note 1(a) as a separate chemically defined compound, and the technical grade designation does not affect classification.
2836.20.00Trona-Derived Synthetic Soda Ash
Trona-derived synthetic soda ash is processed from natural trona ore into disodium carbonate for soap and paper industries. After processing, it is a chemically defined compound meeting Chapter 28 Note 1(a), and the source material does not affect classification.
2836.20.00USP Grade Disodium Carbonate Anhydrous
USP grade disodium carbonate anhydrous is a pure form of Na2CO3 meeting pharmaceutical standards for use in buffering solutions and as an excipient. It is a chemically defined compound under Chapter 28 Note 1(a), and the USP grade designation does not change its classification.