Diammonium Phosphate from China
Diammonium phosphate ((NH4)2HPO4) functions as a fire retardant, yeast nutrient in baking, and pH buffer. Under HTS 2835.29.51.00 as other phosphates, it's chemically defined per Chapter 28 for ammonium salts. White crystalline powder form.
Duty Rate — China → United States
39.1%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Distinguish from 2835.22 DAP fertilizer by purity (>98%) and end-use declaration
• Fire retardant applications need NFPA compliance statements
• Ammonium compounds require proper ventilation labeling for hazmat