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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If of different metal base
Phosphates are classified by cation; other metals use 2835.29, keeping potassium-specific in 2835.24.
If diammonium phosphate form for fertilizers
Chapter 31 fertilizers supersede Chapter 28 for end-use as plant nutrients.
Not sure which classification is right?
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
• Obtain prior FDA notice for food contact substances; ensure anhydrous vs hydrated form matches import declaration; watch for moisture content affecting weight-based duties
Related Products under HTS 2835.24.00.00
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.
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.
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.