Toluene Sulfonic Acid (TSA) from United States
Toluene sulfonic acid (TSA), specifically para-toluene sulfonic acid, serves as both a catalyst and anionic surfactant in polymerization and cleaning applications. Its aromatic toluene ring with sulfonic acid modification fits this tariff item as an anionic organic surface-active agent, other than those specified elsewhere.
Duty Rate — United States → Canada
6.5%
Import Tips
• Determine whether the product is primarily used as a catalyst or surfactant, as this may affect classification
• Provide evidence of surface-active properties if claiming surfactant status
• Check if the product requires any special permits for use in polymerization applications