Aluminum Hydrogen Phosphate from Mexico
Aluminum hydrogen phosphate (Al(H2PO4)3) functions as a reactive binder in acid-cured refractories and corrosion inhibitors. This acidic aluminum phosphate falls under HTS 2835.29.10.00. It provides chemical bonding at elevated temperatures.
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
• pH <2 requires corrosive labeling and secondary containment packaging
• Specify mono- vs di-hydrogen form in technical data sheet for accurate classification
• Avoid bulk packaging claims; verify container specifications match declaration