Mercuric Cyanide Laboratory Grade from Japan
Mercuric cyanide (Hg(CN)2) is a highly toxic white crystalline compound used in gold mining extraction and organic synthesis. It qualifies for HTS 2852.10.10.00 as a chemically defined mercury compound explicitly named in the subheading. Strict handling protocols are required due to its extreme poison hazard.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require end-user certificates proving legitimate industrial use; many countries restrict to verified chemical manufacturers
• Classify under UN 1636 with Poison Inhalation Hazard Zone A markings for ocean/air transport
• Monitor CN codes for cyanide content declarations to avoid dual chemical weapon convention scrutiny