Industrial Phthalic Anhydride Molten from United States
Molten phthalic anhydride is the same chemical compound as the solid form, just delivered in a heated liquid state for direct industrial use. It remains a separate chemically defined aromatic polycarboxylic anhydride, and the physical state does not affect its classification under heading 29.17.
Duty Rate — United States → Canada
0%
Import Tips
• The molten state does not change the tariff classification, but ensure the product is not diluted with solvents beyond what is necessary for transport
• Provide the CBSA with the chemical name and CAS number to confirm classification
• If transported in heated tankers, ensure the shipping documents clearly identify the product as phthalic anhydride