Nitrosylsulfuric Acid (HNSO5) from Germany
Nitrosylsulfuric acid (HNSO5), also known as chamber acid, is a chemically defined inorganic compound with the formula HNO2SO4 or [NO]+[HSO4]-. It is a sulfonitric acid, which is expressly included in tariff item 2808.00.00. The product is not an organic compound, so it falls within Chapter 28, and its chemical definition is clear under the chapter notes.
Duty Rate — Germany → Canada
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 2807000000–2808000000).
- 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: Equal To 2808000000. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
Import Tips
• Provide the chemical formula and a certificate of analysis to confirm the product is nitrosylsulfuric acid, not a mixture of nitric and sulfuric acids
• Check if the product is subject to import controls under the Chemical Weapons Convention; if so, a permit from Global Affairs Canada may be required
• Ensure the product is properly packaged and labelled as a corrosive substance to comply with CBSA and transport regulations