Disodium Phosphite Pentahydrate from Japan
Disodium phosphite pentahydrate (Na2HPO3·5H2O) is a hydrated form used in analytical chemistry and as a reagent. Classified under HTS 2835.10.00.00 as a phosphonate (phosphite) despite hydration, per chemically defined rules. It appears as colorless crystals.
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
• Declare hydrate water content; use UN 3260 for shipping; provide lot analysis certificate