Tobias Acid 50% Aqueous Solution from Mexico
50% aqueous solution of Tobias acid for safe transport, classified under HTS 2921.45.90.10 per Chapter 29 note 1(d). Solution concentration prevents crystallization during shipping. Used directly in coupling baths.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify solution pH 1-2 and clarity specs; precipitation voids classification
• DOT/ADR hazardous material declaration required (corrosive liquid)
• IBC totes with HDPE liners; avoid carbon steel containers