Tetrasodium Pyrophosphate
Tetrasodium pyrophosphate is a polyphosphate used in toothpaste as a tartar control agent and in water treatment for corrosion inhibition. It is categorized under HTS 2835.39.5000 for polyphosphates other than sodium tripolyphosphate.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as sodium tripolyphosphate by customs
Some polyphosphates with similar structures may be grouped under the specific STPP subheading based on trade practices.
If when pre-mixed into oral care preparations
Dentifrices containing polyphosphates as active ingredients are finished dental products under Chapter 33.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Ensure USP-grade certification for pharmaceutical/cosmetic uses to meet FDA import standards
• Provide end-use statements distinguishing industrial vs consumer applications
Related Products under HTS 2835.39.50.00
Sodium Tripolyphosphate (STPP)
Sodium tripolyphosphate is a polyphosphate salt used primarily as a builder in detergents and cleaning products to soften water and enhance cleaning efficiency. It falls under HTS 2835.39.5000 as it is a polyphosphate compound, chemically defined, not specifically enumerated elsewhere in the heading.
Potassium Tripolyphosphate
Potassium tripolyphosphate serves as a food additive for moisture retention in seafood processing and as a sequestrant in industrial applications. Classified in HTS 2835.39.5000 as an 'other' polyphosphate, it meets Chapter 28 criteria for inorganic polyphosphate salts.
Sodium Hexametaphosphate (SHMP)
Sodium hexametaphosphate, a cyclic polyphosphate, functions as a water softener, dispersant in ceramics, and sequestrant in food processing. It qualifies for HTS 2835.39.5000 as an 'other' polyphosphate meeting chemical definition criteria.
Calcium Polyphosphate
Calcium polyphosphate serves as a dietary supplement for bone health and in dental applications for remineralization. It is an 'other' polyphosphate under HTS 2835.39.5000, chemically defined per Chapter 28.
Potassium Polyphosphate
Potassium polyphosphate finds use in meat processing for water binding and in fire retardant formulations. It is imported under HTS 2835.39.5000 as other polyphosphates.
Ammonium Polyphosphate
Ammonium polyphosphate is used as a flame retardant in plastics, textiles, and intumescent coatings due to its phosphorus content. Classified under HTS 2835.39.5000 as it represents polyphosphates of ammonium per Chapter 28 notes.