H Acid 98% Technical Grade Powder from Mexico
Technical grade 1,8-Dihydroxynaphthalene-3,6-disulfonic acid at 98% purity with minimal impurities, packaged for industrial dye production. Classified under HTS 2908.99.0900 as the specific sulfonated derivative meeting chapter purity requirements.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Batch certificates must specify assay >95% to qualify as 'chemically defined' per Chapter 29 note (a)
• Dust hazard precautions required; import under proper NA1993 or UN3077 if stabilizer-added
• Avoid bulk packaging over 25kg drums without anti-caking agent certification