Vanadium Borosilicate Flux Mixture from Mexico
Fusion flux preparation combining ammonium metavanadate, boric acid, and silica for steel analysis in metallurgy labs. HTS 3824.99.36.00 classification for vanadium inorganic mixtures used in analytical chemistry. Enables accurate vanadium determination in alloys.
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
• Lab analysis certificate showing vanadium as key component required; comply with lab chemical import protocols
• Avoid bulk packaging that suggests industrial use
• Pitfall: classification as pure boric acid under 2810