Fumaric Acid for Paper Sizing
Fumaric acid used in alkyl ketene dimer production for paper sizing agents. Pure form qualifies under HTS 2917.19.1700 as other acyclic polycarboxylic acid per Chapter 29 chemical compound provisions.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-reacted with fatty acids for sizing
Chemical finishing agents for paper/textiles in Chapter 38.
If saturated analog (succinic acid) substitution
Different saturation level changes to earlier saturated acid heading.
If diluted for direct paper coating application
Preparations for specific use exclude from pure Chapter 29.
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Import Tips & Compliance
• Specify paper industry end-use in commercial invoice
• Monitor TSCA inventory status for US chemical import
• Ensure moisture content <0.5% for sizing grade specs
Related Products under HTS 2917.19.17.00
Fumaric Acid (Industrial Grade)
Pure fumaric acid (trans-butenedioic acid) used primarily in industrial applications such as polymer production and chemical synthesis. This acyclic polycarboxylic acid falls under HTS 2917.19.1700 as 'other' fumaric acid, distinct from food-grade preparations. It meets Chapter 29 criteria for separate chemically defined organic compounds.
Fumaric Acid Powder (Technical Grade)
Technical-grade fumaric acid in fine powder form for use in plastics manufacturing and as an intermediate in pharmaceutical synthesis. Classified under HTS 2917.19.1700 as other acyclic polycarboxylic acid (fumaric acid), meeting Chapter 29 definition for chemically defined compounds without food-specific additives.
Fumaric Acid Flakes (Pharma Intermediate)
Fumaric acid in flake form serving as intermediate for pharmaceutical fumarate salts like dimethyl fumarate. This pure acyclic dicarboxylic acid qualifies for HTS 2917.19.1700 as 'other' fumaric acid per Chapter 29 notes for chemically defined organic compounds.
Stabilized Fumaric Acid with Anti-Caking Agent
Fumaric acid with minimal silicon dioxide anti-caking agent for transport stability, used in resin production. Permitted under Chapter 29 note (f) as stabilizer necessary for preservation; classified HTS 2917.19.1700 as other fumaric acid.
Fumaric Acid for Unsaturated Polyester Resins
High-purity fumaric acid specifically for synthesizing unsaturated polyester resins in composites. As a separate chemically defined acyclic polycarboxylic acid, it falls under HTS 2917.19.1700 'other' per Chapter 29 scope.
Fumaric Acid with Transport Stabilizer
Fumaric acid containing phosphate stabilizer solely for safe transport, used in chemical manufacturing. Chapter 29 note (f) allows such additions; remains classified as HTS 2917.19.1700 other fumaric acid.