Sodium Hydrosulfite Powder 85% from Japan
Technical-grade sodium hydrosulfite at 85% assay, widely imported for pulp bleaching and as a mordant in leather processing. Classified in HTS 2831.10.5000 as other sodium dithionites, per Chapter 28 definitions for chemically pure inorganic sulfur compounds. It is highly reactive and requires inert atmosphere packaging.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide certificate of analysis showing <88% purity to justify 'other' classification vs technical grade
• Comply with DOT hazardous material regulations (Class 8 Corrosive) for ground transport post-import
• Watch for auto-ignition risks; import in nitrogen-flushed containers to prevent decomposition