Technical Grade Boric Acid Flakes from Canada
Technical grade boric acid flakes are produced by dehydration of borax and used in ceramics, fertilizers, and as a pH buffer in pools. Classified under HTS 2810.00.00.00 as boric acid, meeting Chapter 28's chemically defined criteria. Purity typically 99.5% minimum for industrial use.
Duty Rate — Canada → United States
11.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Declare exact water content to prevent confusion with anhydrous forms or hydrated borates
• Obtain EPA approvals if intended for pesticide use post-import to avoid seizure
• Use DOT-compliant packaging for corrosive classification during transport