Calcite Powder Precipitated Grade from Canada
Synthetic calcite powder produced by carbonation process, chemically equivalent to natural calcite but purer, under HTS 2836.50.00.00. Applications in toothpaste abrasives and optical coatings.
Duty Rate — Canada → United States
10%
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
• Document carbonation production method to distinguish from natural grinding
• Provide refractive index (1.658) certification for optical grade validation
• Comply with Colgate/P&G specs for toothpaste-grade abrasivity limits