Ammonium Alum Powder from Japan
Ammonium alum powder is a double sulfate salt of ammonium and aluminum, conforming to the chemical definition of alums under heading 28.33. It is used in flameproofing textiles and as a component in baking powder. Its classification as an alum is based on its hydrated double sulfate composition.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the product is clearly labeled as ammonium aluminum sulfate dodecahydrate to support classification as an alum
• Provide a safety data sheet (SDS) if required by CBSA for chemical imports
• Verify whether the powder is for food or industrial use, as this may affect other regulatory requirements