Of calcium
Carbides, whether or not chemically defined: > Of calcium
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2849.10.00.00
Calcium Carbide Lumps
Calcium carbide lumps (CaC2) are irregular chunks produced by reacting calcium oxide with carbon in an electric arc furnace, used primarily as a raw material for acetylene gas generation. This product falls under HTS 2849.10.00.00 as it is a chemically defined carbide of calcium, meeting Chapter 28 definitions for inorganic compounds. Typically packaged in 50-100 kg steel drums for industrial transport.
Calcium Carbide Granules 25-50mm
Granular calcium carbide sized 25-50mm, optimized for controlled acetylene release in portable generators and welding applications. Classified under HTS 2849.10.00.00 as a pure calcium carbide meeting chemical definition standards in Chapter 28 Note 1. Supplied in moisture-proof containers to prevent premature reaction.
High-Purity Calcium Carbide 98%
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.
Industrial Calcium Carbide Briquettes
Calcium carbide formed into dense briquettes for efficient storage and transport in steelmaking and carbide lamp applications. Falls under HTS 2849.10.00.00 as chemically defined calcium carbide, explicitly included in Chapter 28 despite physical forming. Briquettes reduce dust and improve handling safety.
Technical Grade Calcium Carbide 85%
Technical grade calcium carbide with 85% minimum CaC2 purity for cost-effective acetylene production in developing markets. Meets HTS 2849.10.00.00 criteria as chemically defined per Chapter 28 Note 1 standards. Commonly used in carbide lamps and small-scale welding.
Calcium Carbide Powder 200 Mesh
Ultra-fine 200 mesh calcium carbide powder for chemical research and micro-scale acetylene generation. Classified as chemically defined calcium carbide under HTS 2849.10.00.00, with particle size not affecting pure compound status per Chapter 28. Shipped under nitrogen to prevent oxidation.