Alginic Acid Powder from Canada
Pure alginic acid in powdered primary form, extracted and purified from brown seaweeds like Laminaria species. Directly classified under HTS 3913.10.00.00 as alginic acid itself. Used in research, pharmaceuticals, and as a raw material for salt/ester production.
Duty Rate — Canada → United States
14.2%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Certify as unmodified alginic acid via FTIR or NMR spectra; check for moisture content affecting weight declaration
• Common error: confusing with synthetic polyacrylic acid