Triphenyl Phosphate (TPP)
Triphenyl phosphate is an aromatic phosphoric ester used primarily as a flame retardant in plastics and resins. It falls under HTS 2919.90.30.00 as an aromatic phosphoric ester (other than those specifically named) that is a chemically defined organic compound per Chapter 29 note (a).
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended with polymers for direct plastic use
Mixtures of organic compounds formulated as additives fall under Chapter 38 rather than pure phosphoric esters.
If aliphatic rather than aromatic structure
Aliphatic phosphoric esters are classified separately from aromatic ones in the 2919.90 structure.
If finishing agents for textiles
Phosphoric esters prepared as finishing agents for textiles move to Chapter 38.
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Import Tips & Compliance
• Verify purity certificate to confirm it's a separate chemically defined compound, not a mixture exceeding Chapter 29 scope
• Include Safety Data Sheets (SDS) documenting flame retardant use to avoid reclassification as plastic additive (Chapter 38)
• Check for halogenated impurities; if present in significant amounts, may shift to different subheading
Related Products under HTS 2919.90.30.00
Tricresyl Phosphate (TCP)
Tricresyl phosphate is an aromatic phosphoric ester used as a plasticizer and flame retardant in vinyl and synthetic lubricants. Classified under HTS 2919.90.30.00 as an 'other' aromatic phosphoric ester and its salts, meeting Chapter 29 requirements for chemically defined organic compounds.
Cresyl Diphenyl Phosphate (CDP)
Cresyl diphenyl phosphate is a mixed aromatic phosphoric ester serving as a flame retardant in engineering plastics and hydraulic fluids. It qualifies for HTS 2919.90.30.00 as an 'other' aromatic derivative of phosphoric esters per Chapter 29 chemical compound definitions.
Diphenyl 2-Ethylhexyl Phosphate
This mixed aromatic-aliphatic phosphoric ester functions as a flame retardant plasticizer for PVC and flexible foams. Falls under HTS 2919.90.30.00 because the molecule contains aromatic rings, classified as 'aromatic' per tariff structure despite mixed substituents.
Triphenyl Phosphate Sodium Salt
The sodium salt of triphenyl phosphate, an aromatic phosphoric ester salt used in specialty flame retardant formulations. HTS 2919.90.30.00 covers salts of phosphoric esters per Chapter 29 note on inorganic salts of organic compounds classified with parent ester.
Isopropylated Triphenyl Phosphate
Isopropylated triphenyl phosphate (ITPP) is a commercial flame retardant mixture of aromatic phosphoric esters. Classified under HTS 2919.90.30.00 as 'other' aromatic phosphoric esters when supplied as defined isomers per Chapter 29 note (b).
Diphenyl Phosphate
Diphenyl phosphate serves as a reactive intermediate for synthesizing other phosphoric esters and flame retardants. As a simple aromatic phosphoric ester, it falls under HTS 2919.90.30.00 'other' category for chemically defined organic phosphoric compounds.