Monopotassium Phosphate (MKP)
Monopotassium phosphate, chemically defined as KH2PO4, is a soluble salt used primarily as a fertilizer providing potassium and phosphorus to plants. It falls under HTS 2835.24.00.00 as a phosphate of potassium, distinct from other salts due to its specific chemical composition meeting Chapter 28 definitions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported specifically as a fertilizer for retail sale
Goods of Chapter 31 like fertilizers take precedence over Chapter 28 chemical classification per Note 2 to Section VI.
If blended with other substances exceeding chemical purity thresholds
Mixtures not chemically defined fall in heading 3824 rather than specific Chapter 28 inorganic compounds.
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The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify purity and chemical definition per Chapter 28 Note 1 to avoid misclassification as mixtures; provide Certificate of Analysis for customs; ensure fertilizer labeling complies with USDA regulations to prevent holds
Related Products under HTS 2835.24.00.00
Dipotassium Phosphate (DKP)
Dipotassium phosphate (K2HPO4) is an inorganic phosphate salt of potassium used as a buffering agent in food and pharmaceuticals. Classified under HTS 2835.24.00.00 for its chemically defined phosphate structure of potassium.
Tripotassium Phosphate (TKP)
Tripotassium phosphate (K3PO4) serves as a food additive for pH control and emulsification, being a pure potassium phosphate compound. It is classified in HTS 2835.24.00.00 as a chemically defined phosphate of potassium.
Potassium Dihydrogen Phosphate
Potassium dihydrogen phosphate, synonymous with MKP, is a white crystalline powder used in fertilizers and as a reagent. Falls under HTS 2835.24.00.00 for potassium phosphates, chemically defined per Chapter notes.
Potassium Phosphate Tribasic
Potassium phosphate tribasic (K3PO4) acts as a sequestrant in detergents and food processing. Classified as a phosphate of potassium under HTS 2835.24.00.00, meeting inorganic compound definitions.
Food-Grade Monopotassium Phosphate
FCC-grade monopotassium phosphate for use in beverages and supplements as an acidity regulator. Remains under HTS 2835.24.00.00 as the pure chemical compound despite food-grade purity specs.
Technical Grade Dipotassium Phosphate
Technical grade K2HPO4 used in water treatment and as a lab reagent, classified as potassium phosphate in HTS 2835.24.00.00.