Ammonium Perborate
Ammonium perborate is a peroxysalt of ammonium that releases active oxygen in mild bleaching and cleaning applications, such as denture cleansers. As a chemically defined ammonium salt of an inorganic peroxyacid, it falls squarely within the scope of heading 28.40, which covers peroxoborates (perborates).
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:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is a double or complex salt
Chapter 28 note 5 directs double or complex salts to heading 28.42.
If mixed with other substances for a specific retail use
Preparations not elsewhere specified may fall under heading 38.24.
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
• Ensure the product is clearly labelled as ammonium perborate with its chemical formula and purity to support classification under 2840.30.00
• Keep safety data sheets (SDS) available, as peroxoborates may be subject to transport and handling regulations
• Verify whether the goods require a permit under the Canadian Environmental Protection Act if imported in bulk
Related Products under Tariff item 2840.30.00
Anhydrous Sodium Perborate
Anhydrous sodium perborate (NaBO3) is used in high-performance bleaching formulations where water content must be minimized. As a chemically defined peroxoborate, it falls under heading 28.40, regardless of hydration state.
Calcium Peroxoborate
Calcium peroxoborate is an alkaline earth peroxoborate used in dental bleaching products and specialty oxidants. As a chemically defined peroxoborate, it is classified under heading 28.40, which covers peroxoborates (perborates).
Disodium Perborate
Disodium perborate is a crystalline peroxoborate salt that liberates oxygen in laundry boosters and stain removers. As a chemically defined sodium peroxoborate, it is classified under heading 28.40, which specifically includes peroxoborates (perborates).
Industrial Sodium Perborate Flakes
Industrial sodium perborate flakes are a physical form of sodium perborate monohydrate used in bulk paper pulp bleaching. The flake form does not alter the chemical classification, and the product remains a peroxoborate under heading 28.40.
Perborate Bleach Powder (Technical Grade)
Technical grade perborate bleach powder, typically over 98% sodium perborate, is imported for detergent manufacturing. As a chemically defined peroxoborate, it is classified under heading 28.40, which covers peroxoborates (perborates).
Perborate Oxygen Source for Denture Tablets
Pharmaceutical-grade sodium perborate is the active oxygen component in effervescent denture cleaning tablets. When imported as the pure chemical compound, not as the finished tablet, it is classified under heading 28.40 as a peroxoborate.