Zinc Tetrahydroxochromate from Canada
Zinc tetrahydroxychromate (III), a complex zinc chromate used in passivating treatments for aluminum. Chemically defined as zinc chromate derivative under HTS 2841.90.4500. Provided as stable powder for metal pretreatment baths.
Duty Rate — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Distinguish Cr(III) vs Cr(VI) valence in SDS to address toxicity differences
• Validate against Note 1 Chapter 28 for 'chemically defined' status