Scope Information
Contact Information
- Enforcement and Compliance
Customs Liaison Unit (202) 482-0984
Potassium Phosphate Salts from The People Republic of China [ C-570-963 ]
Scope Description
The phosphate salts covered by this order include anhydrous Dipotassium Phosphate (DKP) and Tetrapotassium Pyrophosphate (TKPP), whether anhydrous or in solution (collectively “phosphate
salts”).
TKPP, also known as normal potassium pyrophosphate, Diphosphoric acid or Tetrapotassium salt, is a potassium salt with the formula K4P2O7. The CAS registry number for TKPP is 7320-34-5.
TKPP is typically 18.7% phosphorus and 47.3% potassium. It is generally greater than or equal to 43.0% P2O5 content. TKPP is classified under heading 2835.39.1000, Harmonized Tariff
Schedule of the United States (HTSUS).
DKP, also known as Dipotassium salt, Dipotassium hydrogen orthophosphate or Potassium phosphate, dibasic, has a chemical formula of K2HPO4. The CAS registry number for DKP is 7758-11-4.
DKP is typically 17.8% phosphorus, 44.8% potassium and 40% P2O5 content. DKP is classified under heading 2835.24.0000, HTSUS.
The products covered by this order include the foregoing phosphate salts in all grades, whether food grade or technical grade. The product covered by this order includes anhydrous DKP
without regard to the physical form, whether crushed, granule, powder or fines. Also covered are all forms of TKPP, whether crushed, granule, powder, fines or solution.
For purposes of the order, the narrative description is dispositive, not the tariff heading, American Chemical Society, CAS registry number or CAS name, or the specific percentage
chemical composition identified above.
The International Trade Administration, U.S. Department of Commerce, manages this global trade site to provide access to ITA information on promoting trade and investment, strengthening the competitiveness of U.S. industry, and ensuring fair trade and compliance with trade laws and agreements. External links to other Internet sites should not be construed as an endorsement of the views or privacy policies contained therein. This site contains PDF documents. A PDF reader is available from Adobe Systems Incorporated.