Chromium Trioxide 99.9% Pure Crystals from United States
High-purity chromium trioxide crystals (99.9% CrO3) for laboratory and electronics etching. As a separate chemically defined compound, it is classified under tariff item 2819.10.00, consistent with Chapter 28's coverage of pure inorganic compounds.
Duty Rate — United States → Canada
0%
Import Tips
• Keep the product in its pure crystalline form; any dissolution in solvents may change classification unless it meets Chapter 28 Note 1(c) conditions
• Have a certificate of analysis ready to prove purity for customs
• Note that chromium trioxide is a hazardous material, so ensure proper shipping documentation for CBSA