Potassium Tungstate Crystals from Mexico
Potassium tungstate crystals are large colorless crystals of a chemically defined tungstate salt. They are used in X-ray fluorescence standards and glass manufacturing, classified under heading 28.41.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the crystals are not doped for electronic use, which could affect classification
• Provide the crystal size and purity on the packing list
• Verify that the product is not an optical element, which would fall under Chapter 90