In aqueous solution (Soda lye or liquid soda)
Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium: > Sodium hydroxide (Caustic soda): > In aqueous solution (Soda lye or liquid soda)
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 2815.12.00.00
50% Sodium Hydroxide Aqueous Solution
A 50% concentration aqueous solution of sodium hydroxide, commonly known as liquid caustic soda or soda lye, used in industrial processes like paper manufacturing and soap production. It falls under HTS 2815.12.00.00 as it is chemically defined sodium hydroxide explicitly in aqueous solution form. This subheading covers all concentrations of soda lye, distinguishing it from solid forms.
Industrial Soda Lye 45% Concentration
45% aqueous sodium hydroxide solution, termed soda lye, essential for petroleum refining and textile processing. It qualifies for HTS 2815.12.00.00 as a chemically defined inorganic compound of sodium in aqueous form, per Chapter 28 definitions excluding organo-inorganic mixtures. High concentration ensures efficient handling in bulk industrial applications.
32% Liquid Caustic Soda
Industrial-grade 32% sodium hydroxide in water, known as liquid soda, primarily used in water treatment and alumina production from bauxite. Classified under HTS 2815.12.00.00 because it is an aqueous solution of chemically defined sodium hydroxide per Chapter 28 notes. This form is liquid at room temperature, unlike solid caustic soda.
Membrane-Grade Liquid Caustic Soda 33%
High-purity 33% sodium hydroxide aqueous solution produced via membrane cell process, used in rayon fiber manufacturing. Falls under HTS 2815.12.00.00 as aqueous sodium hydroxide (soda lye), chemically defined without organic impurities per Chapter notes. Membrane grade ensures low chloride content for sensitive applications.
Bulk Liquid Soda 30% for Water Treatment
30% sodium hydroxide solution in bulk for municipal water softening and pH adjustment. Classified in HTS 2815.12.00.00 as soda lye, an aqueous solution of chemically defined NaOH, excluding products of other chapters like Section V salts. Ideal for large-scale environmental applications.
Pharmaceutical-Grade 20% NaOH Solution
20% aqueous sodium hydroxide solution meeting USP standards for pharmaceutical processing like API extraction. Under HTS 2815.12.00.00 as chemically defined soda lye in solution, not covered by Chapter 30 medicaments unless prepared as such. High purity minimizes impurities in drug manufacturing.
Rayon Production Liquid Caustic Soda 35%
35% NaOH aqueous solution optimized for viscose rayon fiber production in textile industry. HTS 2815.12.00.00 applies to this soda lye as pure chemically defined compound in water, distinct from mixtures or textile chemicals. Concentration balances viscosity for mercerizing processes.
Alumina Refining Soda Lye 48%
48% high-strength aqueous sodium hydroxide for Bayer process in alumina extraction from bauxite ore. Classified HTS 2815.12.00.00 as liquid caustic soda, chemically defined per Note 1 Chapter 28. Critical for digesting aluminum oxides in mining operations.
Food Processing 18% NaOH Solution
18% aqueous sodium hydroxide solution, FCC grade, for food processing like olive debittering and chocolate processing. HTS 2815.12.00.00 for soda lye as chemically defined, not under Chapter 21 food preps unless mixed. Low concentration safe for edible applications.
Battery Manufacturing Liquid Caustic 40%
40% sodium hydroxide aqueous solution for nickel-cadmium and alkaline battery electrolyte production. Under HTS 2815.12.00.00 as pure soda lye solution, distinguished from battery parts or mixtures. High conductivity vital for battery performance.