Mercuric Tungsten Chloride from Canada
Mercuric tungsten chloride serves as a reference standard in analytical chemistry for XRF calibration. As a chemically defined mixed metal chloride, it falls under HTS 2827.39.40.00 for tungsten chlorides. Supplied in sealed ampoules.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Mercury content declaration per Toxic Substances Control Act; NIST-traceable certificate required; special waste handling protocols