Fast Black Base E Salt from United States
Fast Black Base E Salt is a double diazo fast color salt that produces deep black shades for wool and silk dyeing, with excellent wet fastness. It is a separate chemically defined organic compound with azo groups, classified under tariff item 2927.00.00.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is a single chemically defined compound and not a mixture
• Provide the CAS number and technical data sheet to the CBSA for classification
• Be aware that double diazo salts may have specific handling requirements under Canadian transport regulations