Dinonylnaphthalene Sulfonic Acid from United States
Dinonylnaphthalene sulfonic acid is a sulfonated derivative of dinonylnaphthalene, containing only sulfo groups. It is a chemically defined compound used as an extractant in hydrometallurgy and as a lube oil additive. Under the Customs Tariff of Canada, it is classified in tariff item 2908.99.00 as a sulfonated derivative of phenols or phenol-alcohols.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is a pure, chemically defined compound with a purity above 90%; if it is a mixture, it may be classified elsewhere
• Verify the product is not put up for retail sale as a formulated additive
• Provide the CAS number and purity data to the CBSA