Dinonylnaphthalene Sulfonic Acid from Germany
Dinonylnaphthalene sulfonic acid serves as extractant in hydrometallurgy and lube oil additives. Sulfonated phenolic derivative containing only sulfo groups, classified HTS 2908.99.1500 when >90% pure.
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
• Acid number 95-105 mg KOH/g specification; stable >6 months certification
• Pitfall: Solvent-dissolved forms (50% in kerosene) reclassified to Chapter 38