Heavy Water (Deuterium Oxide) D2O 99.9% Purity from Canada
Heavy water, chemically known as deuterium oxide (D2O), is water enriched with deuterium isotopes, classified under HTS 2845.10.00.00 as an isotope compound other than those in heading 2844. It is used primarily in nuclear reactors as a neutron moderator due to its unique isotopic properties.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Obtain export licenses from supplier countries due to nuclear dual-use regulations; ensure IAEA safeguards documentation for traceability
• Verify purity certificates to avoid misclassification as regular water