High-Purity Calcium Carbide 98% from Japan
High-purity calcium carbide at 98% CaC2 content, used in specialty chemical synthesis and laboratory acetylene production. This chemically defined compound of calcium is specifically covered by HTS 2849.10.00.00 under Chapter 28's inorganic compound definitions. Packaged in inert atmosphere bags to maintain reactivity.
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
• Provide assay certificates proving >95% purity to distinguish from industrial grades under 2849.90
• Declare exact phosphine content (<0.1%) as trace impurities affect hazardous classification
• Confirm no organic stabilizers present, as those would shift to heading 2831 per chapter notes