STPP for Textile Processing
Sodium tripolyphosphate used in textile processing as a dispersing agent for dyes and auxiliaries. It is pure sodium triphosphate, classified under Chapter 28 as a polyphosphate. It falls under tariff item 2835.31.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify the product is not mixed with surfactants or other textile chemicals
• Use HS code 2835.31.00.00 for customs clearance
• Keep records of the product's composition for CBSA audits
Related Products under Tariff item 2835.31.00
Detergent Builder Sodium Tripolyphosphate Flakes
Flaked sodium tripolyphosphate (STPP) used as a builder in powdered laundry detergents to chelate calcium and magnesium ions. It is a separate chemically defined compound of sodium triphosphate, meeting the criteria of Chapter 28 Note 1. It falls under tariff item 2835.31.00 as sodium triphosphate (sodium tripolyphosphate).
Food Processing Sodium Tripolyphosphate Granules
Granular sodium tripolyphosphate used in food processing as a protein solubilizer to prevent drip loss in shrimp and fish. It is a chemically defined compound of sodium triphosphate, satisfying Chapter 28 Note 1. It is classified under tariff item 2835.31.00 as sodium triphosphate.
Industrial Sodium Tripolyphosphate for Ceramics
Industrial sodium tripolyphosphate used as a deflocculant in ceramics manufacturing to disperse clay slips and control viscosity. It is a pure sodium triphosphate compound, classified under Chapter 28 as a polyphosphate. It falls under tariff item 2835.31.00.
Pharma Excipient Sodium Tripolyphosphate
High-purity sodium tripolyphosphate used as a pharmaceutical excipient for tablet disintegration and controlled drug release. It is a chemically defined compound of sodium triphosphate, meeting Chapter 28 Note 1. It is classified under tariff item 2835.31.00.
Sodium Tripolyphosphate for Water Treatment
Sodium tripolyphosphate used in boiler water treatment to sequester scale-forming ions and prevent corrosion. It is a chemically defined sodium triphosphate compound, classified under Chapter 28 as a polyphosphate. It falls under tariff item 2835.31.00.
Sodium Tripolyphosphate Hexahydrate Crystals
Sodium tripolyphosphate hexahydrate crystals used as a buffering agent and emulsifier in meat processing and canned seafood. It is sodium triphosphate (Na5P3O10·6H2O), a chemically defined compound, and falls under tariff item 2835.31.00 as sodium triphosphate.