Sodium Sulfate Decahydrate (Glauber's Salt) from Mexico
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 — Mexico → United States
10.4%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, 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