Phthalic anhydride
Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde. > Aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: > Phthalic anhydride > Phthalic anhydride
Duty Rate (from China)
Products classified under Tariff item 2917.35.00.00
Food-Grade Phthalic Anhydride
Ultra-high purity phthalic anhydride (>99.9%) meeting food contact specifications, used as a key intermediate in saccharin production. This chemically defined organic compound falls under tariff item 2917.35.00 as phthalic anhydride, per Chapter 29 note 1(a).
2917.35.00Molten Phthalic Anhydride
Phthalic anhydride supplied in molten liquid form at 130-140°C to prevent solidification during bulk transport. This physical state does not alter its chemical identity as phthalic anhydride, classifiable under 2917.35.00 per Chapter 29 note 1(a).
2917.35.00Phthalic Anhydride 99.5% Technical Grade
Technical grade phthalic anhydride with 99.5% minimum assay, containing trace maleic anhydride impurities. This chemically defined compound with allowable impurities is classifiable under 2917.35.00 per Chapter 29 note 1(a), used in unsaturated polyester resin manufacturing.
2917.35.00Phthalic Anhydride Briquettes
Phthalic anhydride compressed into briquettes without binders for metallurgical and resin applications. The briquetting process serves as an anti-dusting measure, allowable under Chapter 29 note 1(g), maintaining classification under 2917.35.00.
2917.35.00Phthalic Anhydride Export Specification PA-01
Standard export grade phthalic anhydride meeting ASTM D4286 PA-01 specifications for alkyd and polyester production. The branded specification does not affect its classification as phthalic anhydride under 2917.35.00 per Chapter 29 note 1(a).
2917.35.00Phthalic Anhydride Flakes
Phthalic anhydride in solid flake form, a white crystalline solid derived from o-xylene oxidation, used primarily in plasticizers and resins. This pure aromatic compound is classifiable under 2917.35.00 per Chapter 29 note 1(a).
2917.35.00Phthalic Anhydride Pellets
Phthalic anhydride formed into uniform pellets for easier handling and dosing in resin production. The pelleting process is solely for transport and preservation, allowable under Chapter 29 note 1(f), maintaining classification under 2917.35.00.
2917.35.00Phthalic Anhydride with 0.02% Inhibitor
Phthalic anhydride stabilized with 0.02% hydroquinone inhibitor to prevent premature polymerization during storage and transport. This stabilizer is necessary for preservation, allowable under Chapter 29 note 1(f), and the product remains classifiable under 2917.35.00.