Potassium hydrogencarbonate (Potassium bicarbonate)
Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate: > Potassium carbonates: > Potassium hydrogencarbonate (Potassium bicarbonate)
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2836.40.20.00
Potassium Bicarbonate USP Grade
Pharmaceutical-grade potassium hydrogencarbonate (potassium bicarbonate) used as an antacid to neutralize stomach acid and treat heartburn. It falls under HTS 2836.40.20.00 as a chemically defined potassium carbonate, specifically the hydrogencarbonate form, meeting Chapter 28 note requirements for inorganic compounds. Packaged in bulk for compounding pharmacies.
Food-Grade Potassium Bicarbonate Powder
Pure potassium hydrogencarbonate approved for food use as a leavening agent in baking and acidity regulator in beverages. Classified under HTS 2836.40.20.00 as a chemically defined inorganic carbonate of potassium, excluded from food prep headings by chapter purity notes. Supplied in 25kg bags for industrial baking.
Technical Grade Potassium Bicarbonate Crystals
Industrial-grade potassium hydrogencarbonate crystals used in water treatment to adjust pH and precipitate calcium. It qualifies for HTS 2836.40.20.00 as a pure, chemically defined potassium carbonate per Chapter 28 definitions. Typically shipped in 50kg drums for chemical manufacturing.
Potassium Bicarbonate for Fire Extinguisher Charges
Dry chemical potassium hydrogencarbonate powder formulated for ABC fire extinguishers to smother flames. Falls under HTS 2836.40.20.00 as chemically defined, not excluded under chapter note (e) for fire-extinguisher charges which applies to organic preparations. Bulk packed for extinguisher filling.
Pharmaceutical Potassium Bicarbonate API
Active pharmaceutical ingredient (API) grade potassium hydrogencarbonate for effervescent tablet production. Classified in HTS 2836.40.20.00 as a pure inorganic compound of potassium per Chapter 28 notes, prior to formulation. Supplied in sealed drums for drug manufacturers.
Potassium Bicarbonate for Swimming Pool pH Balancer
Granular potassium hydrogencarbonate for raising alkalinity and pH in pool water without cloudiness. Under HTS 2836.40.20.00 as chemically defined carbonate, not a prepared mixture. Packaged in 20kg pails for pool supply stores.
Bulk Potassium Hydrogencarbonate for Winemaking
Food-grade potassium bicarbonate used to reduce acidity in wine must and stabilize pH during fermentation. Fits HTS 2836.40.20.00 as pure inorganic potassium salt, per chapter carbonate provisions. Shipped in 1-ton supersacks for vineyards.
Potassium Bicarbonate Agricultural Soil Amendment
Technical potassium hydrogencarbonate for soil pH correction and potassium supplementation in farming. Classified HTS 2836.40.20.00 as inorganic carbonate, excluded from Chapter 31 fertilizers by purity. In 500kg bags for ag distributors.
Pure Potassium Bicarbonate Lab Reagent
ACS-grade potassium hydrogencarbonate for analytical chemistry labs as a buffer and CO2 source. Under HTS 2836.40.20.00 as chemically defined per Chapter 28 notes for pure compounds. Bottled in 1kg lab packs.
Potassium Bicarbonate Dechlorination Agent
Powdered potassium hydrogencarbonate for removing chlorine from aquaculture water and wastewater. HTS 2836.40.20.00 covers this pure compound as potassium carbonate form. In 25kg moisture-proof bags.