</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Synthetic Amorphous Silica Gel from Canada

Synthetic amorphous silica gel is a porous form of silicon dioxide manufactured by acidifying sodium silicate, used as a desiccant. It is classified in HTS 2811.22.5000 as 'other' silicon dioxide, meeting Chapter 28 chemical definition.

Duty Rate — Canada → United States

10%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Document pore volume and surface area to differentiate from natural silica; include MSDS confirming synthetic origin

For beaded/granular forms, specify not calcined to avoid mineral product confusion

Synthetic Amorphous Silica Gel from Canada — Import Duty Rate | HTS 2811.22.50.00