Chromium Potassium Sulfate Dodecahydrate from China
Chromium potassium sulfate dodecahydrate, also known as chrome alum, is a double salt used in analytical chemistry and trivalent chromium plating baths. It qualifies under tariff item 2833.29.00 as a sulfate of chromium, though it is borderline with heading 28.42 for complex salts.
Duty Rate — China → Canada
0%
Import Tips
• Be aware that chrome alum is a double salt; Chapter 28 Note 5 classifies double salts under heading 28.42
• Provide the exact formula to the CBSA to justify classification under 2833.29.00 if it is a simple sulfate
• Keep documentation of the intended use in plating baths