Metaboric Acid Powder from Japan
Metaboric acid (HBO2), a dehydrated form of boric acid, used in flame retardants and catalysts. It is a boric acid isomer and a separate chemically defined compound, meeting Chapter 28 Note 1(a). The tariff item covers boric acids, including this form.
Duty Rate — Japan → Canada
0%
Import Tips
• Confirm the product is pure HBO2 and not a mixture with other borates
• Keep the product dry, as it is less stable than orthoboric acid
• Provide a certificate of analysis to support the classification