Florisil Magnesium Silicate Decolorizer from Mexico
Synthetic magnesium silicate adsorbent similar to natural decolorizing earths, used in pharmaceutical purification and analytical chemistry for removing impurities. Classified under HTS 2508.40.0120 when presented as decolorizing earth equivalent, despite synthetic origin matching natural performance specs. Fine powder form optimized for column chromatography.
Duty Rate — Mexico → United States
10%
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
• Include material safety data sheets confirming non-hazardous mineral composition
• Validate batch-specific adsorption capacity via iodine number tests
• Avoid steel drums that may contaminate with iron affecting performance