High-Purity Arsenic Acid for Glass Production from Canada
High-purity H3AsO4 used as a fining agent in optical glass manufacturing to remove bubbles. It is specifically arsenic acid under HTS 2811.19.10.00, not excluded as a luminophore product per chapter note (d).
Duty Rate — Canada → United States
2.3%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Certify non-radioactive per 2844 note; bulk import needs DOT exemption
• Avoid classifying as glass frit (3207)