Isophthalic Acid Flakes
Isophthalic Acid Flakes are isophthalic acid processed into uniform flakes for improved handling and dissolution in polyester reactors. The physical form does not affect classification, and it remains under tariff item 2917.39.00 as an aromatic polycarboxylic acid.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
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Import Tips & Compliance
• Ensure the flake form is documented as a physical variation of the same chemical compound
• Provide the production process details if requested by CBSA
• Verify that no additives are present that could change classification
Related Products under Tariff item 2917.39.00
1,4-Naphthalenedicarboxylic Acid
1,4-Naphthalenedicarboxylic acid, an aromatic polycarboxylic acid derived from naphthalene, used in high-performance polyester resins and liquid crystal polymers. It is classified under tariff item 2917.39.00 as 'Other' aromatic polycarboxylic acids and their derivatives.
2,2-Bis(3,4-dicarboxyphenyl)hexafluoropropane Dianhydride
4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) is a fluorinated aromatic dianhydride used in producing colorless polyimides for optical applications. It is a separate chemically defined compound, and its classification under heading 29.17 is based on its structure as an aromatic polycarboxylic anhydride.
4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) 98% purity
4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride) at 98% purity is a high-purity aromatic polycarboxylic anhydride used in polyimide synthesis. It is a separate chemically defined compound, and the purity level ensures it meets the definition under Chapter 29.
4,5,6,7-Tetrabromophthalic Anhydride
4,5,6,7-Tetrabromophthalic Anhydride is a pure halogenated aromatic polycarboxylic acid anhydride used in reactive flame retardant synthesis for unsaturated polyester resins. It falls under tariff item 2917.39.00 as an 'Other' aromatic polycarboxylic acid derivative.
4-Sulfo-1,8-Naphthalic Anhydride
4-Sulfo-1,8-naphthalic anhydride is a sulfonated aromatic polycarboxylic anhydride used in the production of fluorescent brighteners and dye intermediates. It is a separate chemically defined organic compound, and its sulfonation does not remove it from the scope of heading 29.17, as the derivatives are covered by the heading's text.
6FDA Monomer -- 4,4'-(Hexafluoroisopropylidene)bis(phthalic anhydride)
6FDA, or 4,4'-(hexafluoroisopropylidene)bis(phthalic anhydride), is a fluorinated dianhydride used in synthesizing polyimides with high thermal and chemical resistance. It is a separate chemically defined aromatic polycarboxylic anhydride, and its classification under heading 29.17 is clear.