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

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