Sodium Peroxotungstate
Sodium peroxotungstate is a peroxoacid salt used as a catalyst in oxidation reactions for chemical synthesis. It is classified under tariff item 2842.90.00 as an other salt of an inorganic peroxoacid, consistent with Chapter 28 coverage of peroxoacids of inorganic bases.
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 |
PGA flags (2)Show detailsHide detailsCFIAAll ProgramsRequiredHCActive Pharmaceutical IngredientsMay be required
- CFIA
All Programs · Required
CANADIAN FOOD INSPECTION AGENCY: CFIA All Programs requires review / declaration data. CBSA's Single Window matching criteria match this classification number (Within Range 2842100000–2842900000).
- HC
Active Pharmaceutical Ingredients · May be required
May require HC Active Pharmaceutical Ingredients depending on intended use (HC13) and Canadian product category (HC01). Matching criteria: Starts With 2842. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supported on a carrier for catalytic use
Supported catalysts are classified in Chapter 38.
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 a detailed technical datasheet to the CBSA to confirm the peroxoacid salt composition
• If the product is a catalyst supported on a substrate, consider whether it is a preparation of Chapter 38
• Ensure proper hazardous goods documentation if the peroxo compound is oxidising
Related Products under Tariff item 2842.90.00
Aluminum Peroxophosphate
Aluminum peroxophosphate is an inorganic salt of peroxophosphoric acid, used in flame retardants. It is a salt of a peroxoacid, classifiable under heading 28.42 as 'other salts of inorganic acids or peroxoacids'.
Ammonium Peroxosulfate
Ammonium peroxosulfate ((NH4)2S2O8) is an oxidizing salt used in etching and polymerization. It is a salt of peroxosulfuric acid, classifiable under heading 28.42 as an 'other salt of a peroxoacid'.
Ammonium Thiocyanate
Ammonium thiocyanate (NH4SCN) is an inorganic salt of thiocyanic acid, commonly used in fertilizers, photography, and steel pickling. It is a chemically defined compound of an inorganic base, classifiable under heading 28.42 as a thiocyanate.
Antimony Selenide Nanoparticles
Antimony selenide nanoparticles are used in thin-film photovoltaics and battery research, with particle sizes under 100 nm for enhanced electronic properties. As a metal selenide, it is a chemically defined inorganic salt of an inorganic base, classified under tariff item 2842.90.00.
Barium Thiocyanate
Barium thiocyanate (Ba(SCN)2) is an inorganic salt used as a corrosion inhibitor and in textile processing. It is a chemically defined thiocyanate of an inorganic base, falling under heading 28.42.
Bismuth Telluride Powder
Bismuth telluride powder is a thermoelectric material used in Peltier coolers and power generators, imported as a fine powder for further processing. As a telluride of an inorganic base, it is a chemically defined salt classified under tariff item 2842.90.00.