Peroxoboric Acid
Peroxoboric acid, in stabilized form, is a precursor for perborate salts in laboratory and fine chemical production. As a chemically defined peroxoborate, it is classified under heading 28.40, which includes 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 boric acid, not peroxoboric acid
Boric oxides and boric acids are classified under heading 28.10.
If the product is a complex salt
Complex salts are classified under heading 28.42.
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
• Provide the chemical name and purity on the invoice to support classification under 2840.30.00
• Verify if the product requires a permit under Canadian chemical control regulations
• Keep the safety data sheet available for CBSA inspection
Related Products under Tariff item 2840.30.00
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).
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).