Sodium Metasilicate Pentahydrate from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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