Industrial Carbon Dioxide Gas Cylinder
High-purity carbon dioxide gas compressed in steel cylinders for industrial applications such as welding, beverage carbonation, and pH control in water treatment. Classified under HTS 2811.21.00.00 as carbon dioxide, a simple inorganic oxygen compound of nonmetals per Chapter 28 notes. It is chemically defined and not excluded by chapter provisions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If mixed with other gases exceeding 5% impurity
Impure carbon dioxide not meeting chemically defined standards falls under prepared chemical mixtures in heading 3824.
If for nitrogen or oxygen, not carbon dioxide
Only carbon dioxide specifically qualifies under 2811.21; other elemental gases use different headings in Chapter 28.
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Import Tips & Compliance
• Obtain material safety data sheets (MSDS) and purity certificates to verify it meets 'chemically defined' criteria under subheading note
• Ensure DOT-compliant cylinders with proper pressure ratings; common pitfall is inadequate hazardous material declarations
• Declare exact purity levels to prevent reclassification as gas mixtures under heading 3824
Related Products under HTS 2811.21.00.00
Liquid Carbon Dioxide Bulk Tanker
Liquid CO2 stored at -78°C for industrial refrigeration and fire suppression systems. HTS 2811.21.00.00 covers all physical states of carbon dioxide as an inorganic nonmetal oxygen compound.
pH Correction Carbon Dioxide
Carbon dioxide gas for adjusting pH in wastewater treatment and aquaculture systems. Pure CO2 under HTS 2811.21.00.00 as it forms carbonic acid in solution, qualifying as an inorganic acid per Chapter 28.
Food-Grade CO2 for Beverage Carbonation
Ultra-high purity carbon dioxide (99.99%) used to carbonate soft drinks, beer, and sparkling water in the food and beverage industry. Falls under HTS 2811.21.00.00 as pure carbon dioxide, an inorganic oxygen compound of nonmetals, explicitly included in Chapter 28 note 2(a).
Dry Ice Blocks for Shipping
Solid carbon dioxide (dry ice) in block form used for perishable goods shipping and cryogenic applications. Classified as carbon dioxide under HTS 2811.21.00.00 since dry ice is the solid phase of CO2, a chemically defined inorganic compound per Chapter 28.
Medical-Grade Carbon Dioxide USP
Pharmaceutical-grade CO2 meeting USP standards for laparoscopic surgery insufflation and respiratory therapy. HTS 2811.21.00.00 applies as it is pure carbon dioxide, an inorganic oxygen compound excluded from pharmaceuticals in Chapter 30 by Section VI notes.
Welding Shielding Gas CO2
Pure carbon dioxide used as shielding gas in MIG/MAG welding to protect weld pools from atmospheric contamination. Classified under HTS 2811.21.00.00 as chemically defined carbon dioxide per Chapter 28 subheading note.