Zinc Sulfide Phosphor Powder from Canada
Fine powder of zinc sulfide doped with activators like copper or manganese, used as a green or blue-emitting luminophore in glow-in-the-dark paints and coatings. Classified under HTS 3206.50.00.00 as an inorganic product specifically designed for luminescence applications, fitting the chapter's scope for luminophores whether chemically defined or not.
Duty Rate — Canada → United States
Rate breakdown
Import Tips
• Verify chemical purity and activator content via lab analysis to confirm luminophore function and avoid reclassification as general inorganic chemicals under Chapter 28
• Provide Safety Data Sheets (SDS) and emission spectra documentation to customs for proof of use as luminophores
• Avoid common pitfalls like mislabeling as 'pigment' without specifying phosphor properties, which could shift to heading 3206 other subheadings