Sodium Sulfate Anhydrous (Salt Cake) from Japan
Sodium sulfate anhydrous, also known as salt cake, is a white crystalline powder used in the glass, paper, and detergent industries as a filler and fluxing agent. It falls under HTS 2833.19.00.00 as 'other' sodium sulfates, distinct from Glauber's salt (sodium sulfate decahydrate) classified in 2833.11.50.00.
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
• Verify purity and anhydrous state via lab analysis to avoid misclassification as decahydrate under 2833.11
• Include Material Safety Data Sheets (MSDS) and certificates of analysis for customs clearance
• Check for hazardous material shipping requirements if in bulk quantities