Perborate Oxygen Source for Denture Tablets
Pharmaceutical-grade sodium perborate used as the active oxygen component in effervescent denture cleaning tablets. As a separate chemically defined peroxoborate, it falls under heading 28.40, even though the finished tablets are classified elsewhere.
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 put up in measured doses or for retail sale
Goods put up in measured doses or for retail sale are classified in heading 30.06.
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 not put up in measured doses or for retail sale, as that would change classification
• Provide evidence of pharmaceutical grade if requested
• Verify compliance with Health Canada regulations for pharmaceutical ingredients
Related Products under Tariff item 2840.30.00
Ammonium Perborate
Ammonium perborate is a peroxysalt of ammonium that releases active oxygen in applications such as denture cleaners and mild bleaching agents. It is a separate chemically defined compound of an inorganic base, which falls under heading 28.40 as a peroxoborate (perborate).
Anhydrous Sodium Perborate
Anhydrous sodium perborate (NaBO3) is the dehydrated form used in high-performance bleaching formulations where water content must be minimized. It is a chemically defined peroxoborate, classifiable under heading 28.40.
Calcium Peroxoborate
Calcium peroxoborate is an alkaline earth peroxoborate utilized in dental bleaching products and specialty oxidants. It is a chemically defined compound of an inorganic base, classifiable under heading 28.40.
Disodium Perborate
Disodium perborate is a crystalline peroxoborate salt of sodium, used as an oxygen liberator in laundry boosters. It is a separate chemically defined compound of an inorganic base, classifiable under heading 28.40 as a peroxoborate (perborate).
Industrial Sodium Perborate Flakes
Industrial sodium perborate flakes, specifically the monohydrate form, are used in bulk applications such as paper pulp bleaching. This peroxoborate salt of sodium is a separate chemically defined compound, classifiable under heading 28.40.
Perborate Bleach Powder (Technical Grade)
Technical grade perborate bleach powder, typically over 98% sodium perborate, is imported for detergent manufacturing. It is a separate chemically defined peroxoborate of sodium, classifiable under heading 28.40.