Tungsten Pentachloride from Canada
Tungsten pentachloride (WCl5) is a dark-green crystalline compound employed as a catalyst in olefin polymerization and chlorination reactions. Classified under HTS 2827.39.40.00 as other chlorides of tungsten. It hydrolyzes readily in air forming oxychlorides.
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
• Require SDS confirming <0.1% impurities for chemical definition; use DOT-approved packaging for corrosive solids; check for CITES if tungsten sourced from conflict areas