Potassium Dihydrogen Phosphate from United States
Potassium dihydrogen phosphate is another name for monopotassium phosphate (KH2PO4). It is a chemically defined potassium phosphate salt used in fertilizers and as a laboratory reagent, classifiable under this tariff item.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is anhydrous and free of organic impurities to maintain classification in Chapter 28
• Keep the supplier's specification sheet showing the chemical formula
• If used in electronics, verify whether doping or wafer forms change the heading