Photo Grade Ammonium Persulfate
High purity photo grade ammonium persulfate for etching photoresists in semiconductor manufacturing. As a chemically pure ammonium peroxosulphate, it is classified under tariff item 2833.40.00, which covers peroxosulphates (persulphates) of all kinds.
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 ammonium persulfate is doped for electronics use and cut into discs, wafers, or similar forms
Chapter 28 note 8 excludes doped elements in such forms, directing to heading 38.18.
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
• For semiconductor applications, ensure the product is not doped for electronics use, as that could fall under heading 38.18
• The CBSA may require purity documentation
• This product is an oxidizer, so follow Transport Canada regulations
Related Products under Tariff item 2833.40.00
ACS Reagent Ammonium Persulfate
ACS reagent grade ammonium persulfate with 99.99% purity for laboratory polymerization and biochemical applications. As a chemically defined ammonium peroxosulphate, it is classified under tariff item 2833.40.00, which covers all peroxosulphates (persulphates).
ACS Reagent Potassium Persulfate
ACS-grade potassium persulfate for laboratory oxidations and analysis is a pure, chemically defined peroxosulphate of potassium. It falls under tariff item 2833.40.00.
Ammonium Persulfate Alternative Sodium Grade
Sodium persulfate (Na2S2O8) is a strong oxidizing agent used as a substitute for ammonium persulfate in emulsion polymerization processes. It is a chemically defined inorganic compound of sodium, falling under the peroxosulphates (persulphates) subheading of the Customs Tariff of Canada.
Ammonium Persulfate Crystals
Crystalline ammonium persulfate used in etching solutions for printed circuit boards and metal surface treatment. As a chemically defined ammonium peroxosulphate, it is classified under tariff item 2833.40.00, which covers peroxosulphates (persulphates) of all kinds.
Ammonium Persulfate Flakes
Flake form of ammonium persulfate for convenient handling in water treatment and wastewater oxidation processes. As a chemically defined ammonium peroxosulphate, it is classified under tariff item 2833.40.00, which covers peroxosulphates (persulphates) in all physical forms.
Ammonium Persulfate Powder
Ammonium persulfate ((NH4)2S2O8) is a strong oxidizing agent used as a radical initiator in acrylic and vinyl polymerizations. This chemically defined peroxosulphate of ammonium falls under tariff item 2833.40.00.