High Purity Potassium Polyphosphate Crystals

High purity potassium polyphosphate crystals (>99%) used in laboratory reagents and pharmaceutical intermediates. Meets HTS 2835.39.10.00 criteria as chemically pure potassium polyphosphate. Crystal form ensures stability for precise applications.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.1%+35.0%38.1%
🇲🇽Mexico3.1%+10.0%13.1%
🇨🇦Canada3.1%+10.0%13.1%
🇩🇪Germany3.1%+10.0%13.1%
🇯🇵Japan3.1%+10.0%13.1%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2840.19.00Lower: 35.1% vs 38.1%

If borates of potassium

Different anion family changes classification heading.

3002.90Lower: 10% vs 38.1%

If pharmaceutical intermediate

Organic synthesis intermediates to Chapter 30 if for medicinal use.

Not sure which classification is right?

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Import Tips & Compliance

Provide chromatogram or NMR confirming chemical identity and purity

Declare for laboratory use to avoid pharmaceutical registration requirements

Use child-resistant packaging for lab chemical imports

Related Products under HTS 2835.39.10.00

Potassium Tripolyphosphate (KTPP)

Potassium tripolyphosphate is a potassium salt of tripolyphosphoric acid used primarily as a sequestrant and builder in detergents and water treatment. It falls under HTS 2835.39.10.00 as a polyphosphate of potassium, chemically defined per Chapter 28 notes. This inorganic compound helps prevent scale buildup in industrial boilers.

Potassium Pyrophosphate

Potassium pyrophosphate (K4P2O7) serves as a buffering agent and dispersant in metal cleaning solutions and food processing. Classified under HTS 2835.39.10.00 as a polyphosphate of potassium meeting Chapter 28 definitions for chemically defined inorganic compounds. It is commonly used in industrial formulations.

Potassium Hexametaphosphate

Potassium hexametaphosphate is a cyclic polyphosphate used as a sequestrant in water softening and corrosion inhibition. It qualifies for HTS 2835.39.10.00 as 'other' polyphosphates of potassium under Chapter 28. This compound is valued for its ability to bind metal ions.

Technical Grade Potassium Polyphosphate

Technical grade potassium polyphosphate is an industrial chemical for use in ceramics production and as a deflocculant. Falls under HTS 2835.39.10.00 for other polyphosphates of potassium, chemically defined inorganic salts. Purity typically 95%+ for manufacturing applications.

Food Grade Potassium Tripolyphosphate Powder

Food grade potassium tripolyphosphate powder acts as a stabilizer and emulsifier in meat processing and dairy products. Classified in HTS 2835.39.10.00 as potassium polyphosphate meeting chemical definition standards. Meets FCC specifications for direct food contact.

Potassium Polyphosphate Solution 45%

45% aqueous solution of potassium polyphosphate used in liquid detergents and agricultural sprays. Remains under HTS 2835.39.10.00 as chemically defined potassium polyphosphate, not excluded by solution form. Concentration specified for industrial applications.