Chrome Alum Crystals from Canada
Chrome alum (chromium potassium sulfate, KCr(SO4)2·12H2O) is used in leather tanning and analytical chemistry. Falls under HTS 2833.30.00.00 as a trivalent metal alum double salt.
Duty Rate — Canada → United States
11.6%
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
• Handle as hazardous material due to chromium content; require EPA TSCA notification
• Confirm crystal structure via X-ray diffraction if disputed