Silicalite-1 Aluminosilicate from Mexico
Silicalite-1 (pure silica MFI) with trace aluminum forms hydrophobic zeolite membranes. Classified HTS 2842.10.00.00 when chemically defined as complex silicate. Used in pervaporation and organic separations.
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
• Specify aluminum content <1% if applicable; provide hydrophobicity contact angle data; distinguish from optical grade under Chapter 90 exclusion