Chromium Potassium Sulfate Dodecahydrate from Japan
This double salt, KCr(SO4)2·12H2O, is a chrome alum used in analytical chemistry and trivalent chromium plating baths. It qualifies under HTS 2833.29.40.00 as a sulfate of chromium, though borderline with 2842 for complex salts. Its violet crystals are standard in lab reagents.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide crystallographic data or formula confirmation to distinguish from true double salts in 2842
• For lab imports, include end-use statements to avoid industrial chemical scrutiny