Sodium Metasilicate Pentahydrate from China
Sodium metasilicate pentahydrate (Na2SiO3·5H2O) is a hydrated form of sodium metasilicate, a granular or powdered inorganic compound classified under HTS 2839.11.00.00 as a commercial sodium silicate. It is widely used in industrial cleaning formulations for its alkaline and buffering properties.
Duty Rate — China → United States
36.1%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 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
• Verify purity and hydration level via certificate of analysis to confirm classification under 2839.11.00.00
• Ensure proper labeling as a corrosive alkali for DOT hazardous material shipping compliance
• Avoid misclassification as detergent mixtures under Chapter 34 by importing in bulk chemical form