Potassium Hydride Dispersion from Mexico
Potassium hydride dispersed in mineral oil prevents direct air/moisture contact. Used as strong base in specialized organic reactions. HTS 2850.00.5000 covers this chemically defined hydride.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• UN 1422 hazardous classification demands temperature-controlled shipping
• Dispersion concentration certificates prevent reclassification
• Spill containment procedures required in import documentation