Potassium Tetraborate from United States
Potassium tetraborate is an inorganic salt used as a boron source in welding fluxes and ceramics. It is classified under tariff item 2840.20.00 as an 'other borate', distinct from sodium borates, and appears as a white powder.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm that the product is not a peroxoborate, which would be classified elsewhere
• Provide a certificate of analysis showing the chemical formula and purity
• If used in welding fluxes, ensure compliance with Canadian occupational health and safety regulations