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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If polyphosphates of other metals like calcium
Polyphosphates are separated by metal base; non-potassium go to other subheadings.
If finishing agents for textiles
Polyphosphate-based finishing preparations classified under Chapter 38 for specific uses.
If as mineral fertilizer additive
Chapter notes exclude fertilizer products to Chapter 31.
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Import Tips & Compliance
• Use precise nomenclature like 'potassium polymetaphosphate' to match HTS description
• Include end-use declaration if for food grade to avoid fertilizer misclassification
• Watch for anti-dumping duties on phosphate imports from certain origins
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.
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.
Granular Potassium Tetrapolyphosphate
Granular potassium tetrapolyphosphate provides slow-release phosphate in industrial water treatment systems. Classified HTS 2835.39.10.00 for other polyphosphates of potassium. Granular form enhances handling in large-scale operations.