Toluene Sulfonic Acid (TSA) from Germany
Para-toluene sulfonic acid serves as both a catalyst and anionic surfactant in polymerization and cleaning applications. Its aromatic toluene ring with sulfonic acid modification fits HTS 3402.39.10.00 as it demonstrates surface-active properties in aqueous solutions. Supplied as white flakes or 65% solution for chemical synthesis.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Classify monohydrate vs anhydrous forms separately if purity differs
• Handle as corrosive solid/liquid; verify UN3170 proper shipping name
• Avoid Chapter 29 if surfactant test data confirms Chapter 34 applicability