Photo Grade Ammonium Persulfate from United States
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.
Duty Rate — United States → Canada
0%
Import Tips
• 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