Sodium Sulfate Decahydrate (Glauber's Salt) from Japan
Disodium sulfate decahydrate (Na2SO4·10H2O), known as Glauber's salt, a hydrated form chemically defined under Chapter 28. Falls under HTS 2833.11.50 as 'other' disodium sulfate for thermal energy storage and lab applications.
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 lab assay confirming 10H2O hydration to distinguish from anhydrous form
• Check for REACH compliance if destined for EU markets post-import
• Label as hazardous if shipped in bulk to prevent moisture absorption issues