Sassolite Natural Boric Acid Crystals from United States
Sassolite natural boric acid crystals come from volcanic fumaroles, capped at 85% purity for this category. Used in pharmaceuticals and antiseptics precursors, they fall under tariff item 2528.00.00 as natural boric acid.
Duty Rate — United States → Canada
0%
Import Tips
• Verify the H3BO3 content is not more than 85% on dry weight to stay in this item
• Ensure the crystals are natural, not synthetic
• Provide a certificate of analysis for purity