Sodium Molybdate-Silica Corrosion Inhibitor from China
An aqueous mixture of sodium molybdate and silica compounds used in cooling water systems to prevent corrosion in industrial boilers. Molybdenum provides anodic inhibition properties. Classified in HTS 3824.99.34.00 as a molybdenum-containing inorganic mixture.
Duty Rate — China → United States
40.3%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Document exact percentage of molybdenum compounds to distinguish from general anti-corrosion prep under 3824.99.40
• EPA registration may be required if marketed for US water treatment systems
• Avoid bulk packaging mislabeling as it could shift to waste headings if concentration exceeds limits