Chlorosulfuric acid
Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid: > Chlorosulfuric acid
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 2806.20.00.00
Chlorosulfuric Acid 98% Technical Grade
Chlorosulfuric acid (HSO3Cl) at 98% purity, a fuming, colorless to yellowish liquid used primarily as a sulfonating agent in organic synthesis for producing detergents and pharmaceuticals. It falls under HTS 2806.20.00.00 as a chemically defined inorganic acid distinct from hydrochloric acid. Supplied in bulk for industrial chemical processing.
Reagent Grade Chlorosulfuric Acid
High-purity chlorosulfuric acid (>99%) suitable for laboratory use in analytical chemistry and as a catalyst in esterification reactions. Classified under HTS 2806.20.00.00 as a pure, chemically defined inorganic acid per Chapter 28 notes. Typically packaged in small glass ampoules or bottles for research applications.
Industrial Chlorosulfuric Acid for Dyestuff Production
Bulk chlorosulfuric acid used in the sulfonation of aromatic compounds to manufacture acid dyes and intermediates for textile industry. HTS 2806.20.00.00 covers this fuming inorganic acid as a key reagent in organic chemistry. Shipped in ISO tanks or 55-gallon drums with corrosion-resistant lining.
Pharmaceutical Grade Chlorosulfuric Acid
Ultra-pure chlorosulfuric acid meeting cGMP standards for sulfonation in active pharmaceutical ingredient (API) synthesis, such as sulfonamide antibiotics. Falls squarely under HTS 2806.20.00.00 as chemically defined per Chapter 28 definitions. Supplied in specialized pharma-grade containers.
Chlorosulfuric Acid Anhydride for Polymer Processing
Anhydrous chlorosulfuric acid used to chlorosulfonate polymers like polyethylene for ion-exchange resins and membranes. Classified in HTS 2806.20.00.00 as the pure inorganic acid essential for surface modification reactions. Bulk liquid for chemical engineering applications.
Distilled Chlorosulfuric Acid 99.5%
Vacuum-distilled chlorosulfuric acid at 99.5% concentration, minimizing impurities for high-precision etching and microelectronics applications. HTS 2806.20.00.00 applies to this chemically defined acid per official chapter notes excluding mixtures. Packaged in fluoropolymer bottles.
Bulk Chlorosulfuric Acid for Detergent Manufacturing
Commodity-grade chlorosulfuric acid tanker loads for linear alkylbenzene sulfonation in laundry detergent production. Specifically classified under HTS 2806.20.00.00 as the pure sulfonating agent meeting Chapter 28 chemical definitions. Essential oleochemical intermediate.
Stabilized Chlorosulfuric Acid Solution
Chlorosulfuric acid stabilized with minimal inorganic inhibitors to prevent decomposition during storage, maintaining >96% active content. Still classified under HTS 2806.20.00.00 as chemically defined acid, not excluded mixtures per chapter notes. For extended shelf-life industrial use.