Sodium Naphthenate Flotation Collector from Canada
Despite subheading focus on water-insoluble salts, sodium naphthenate (soluble variant) is sometimes included; used as ore flotation collector in mineral processing. HTS 3824.99.7550 for other naphthenic preparations in mining. Selectively floats copper/molybdenum sulfides.
Duty Rate — Canada → United States
13.7%
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
• Confirm insolubility equiv via pH adjustment tests per rulings
• MSHA approval for underground use; bulk liquid IBC compliance
• Alternative 2837 if simple carboxylate salts