Sodium Sulfate Anhydrous (Salt Cake) from Mexico
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 — Mexico → United States
10%
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
• 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