Reagent Grade Chlorosulfuric Acid
High-purity chlorosulfuric acid (>99%) for laboratory use in analytical chemistry and as a catalyst in esterification reactions. It is a separate chemically defined compound, meeting Chapter 28 Note 1(a), and not excluded by Chapter 28 Note 3.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is hydrogen chloride
Hydrogen chloride is a separate product under the same subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide a certificate of analysis to confirm purity above 99% and suitability for laboratory use
• Ensure proper packaging for hazardous chemicals and include the UN number on shipping documents
Related Products under Tariff item 2806.20.00
Bulk Chlorosulfuric Acid for Detergent Manufacturing
Bulk chlorosulfuric acid in tanker loads for sulfonation of linear alkylbenzene in detergent manufacturing. It is a separate chemically defined compound of inorganic origin, meeting the criteria of Chapter 28 Note 1(a), and is not excluded by Chapter 28 Note 3.
Chlorosulfuric Acid 98% Technical Grade
Chlorosulfuric acid at 98% purity, a fuming liquid used as a sulfonating agent in organic synthesis for detergents and pharmaceuticals. It is a separate chemically defined compound, classifiable under Chapter 28 Note 1(a), and not excluded by Chapter 28 Note 3.
Chlorosulfuric Acid Anhydride for Polymer Processing
Anhydrous chlorosulfuric acid used to chlorosulfonate polymers like polyethylene for ion-exchange resins and membranes. It is a separate chemically defined inorganic compound, meeting Chapter 28 Note 1(a), and not excluded by Chapter 28 Note 3.
Distilled Chlorosulfuric Acid 99.5%
Vacuum-distilled chlorosulfuric acid at 99.5% concentration for high-precision etching and microelectronics applications. It is a separate chemically defined compound, classifiable under Chapter 28 Note 1(a), and not excluded by Chapter 28 Note 3.
Industrial Chlorosulfuric Acid for Dyestuff Production
Bulk chlorosulfuric acid for sulfonation of aromatic compounds to manufacture acid dyes and intermediates. It is a separate chemically defined inorganic compound, meeting Chapter 28 Note 1(a), and not excluded by Chapter 28 Note 3.
Pharmaceutical Grade Chlorosulfuric Acid
Ultra-pure chlorosulfuric acid meeting cGMP standards for sulfonation in active pharmaceutical ingredient (API) synthesis, such as sulfonamide antibiotics. It is a separate chemically defined compound, classifiable under Chapter 28 Note 1(a), and not excluded by Chapter 28 Note 3.