Ethyl Acid Phosphate (EAP)
Ethyl acid phosphate is a monoester used in rust inhibitors and catalysts. HTS 2919.90.50 includes it as 'other' phosphoric ester, covering partial esters and lactophosphates. The acidic P-OH group characterizes it within the heading.
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Import Tips & Compliance
• Specify acid value and mono/di ester ratio; pH testing prevents salt misclassification
• Corrosive UN 3265 labeling required; avoid Chapter 28 inorganic acid error
• For metalworking fluids, declare ester content > principal component
Related Products under HTS 2919.90.50
Tricresyl Phosphate (TCP)
Tricresyl phosphate is a triaryl phosphate ester used primarily as a plasticizer and flame retardant in plastics, lubricants, and coatings. It falls under HTS 2919.90.50 as a phosphoric ester (phosphate ester) that is not specifically enumerated elsewhere in heading 2919. This classification applies to its chemical structure as an organic phosphate ester without halogenated, sulfonated, nitrated, or nitrosated derivatives.
Triphenyl Phosphate (TPP)
Triphenyl phosphate serves as a flame retardant and plasticizer in PVC, resins, and nail polishes. Classified under HTS 2919.90.50 as a 'other' phosphoric ester, it matches the heading for non-substituted phosphate triesters. Its aryl phosphate structure distinguishes it from alkyl phosphates or derivatives.
Tributyl Phosphate (TBP)
Tributyl phosphate is an alkyl phosphate ester extracted for nuclear fuel processing, solvent extraction, and as a plasticizer. It qualifies for HTS 2919.90.50 as an 'other' phosphoric ester without specified modifications. The trialkyl structure fits the phosphoric esters heading per Chapter 29 scope.
Diphenyl Cresyl Phosphate
This mixed aryl phosphate ester functions as a hydraulic fluid additive and flame retardant. HTS 2919.90.50 covers it as 'other' phosphoric esters, aligning with the heading for mixed phosphate triesters. Its composition avoids specific exclusions in Chapter 29.
2-Ethylhexyl Acid Phosphate
This monoalkyl acid phosphate functions in metal extraction and adhesion promoters. Classified under HTS 2919.90.50 as other phosphoric esters including partial esters. It meets the chemically defined organic compound criteria of Chapter 29.
Triisopropyl Phosphate
Triisopropyl phosphate is a low-toxicity flame retardant for textiles and coatings. HTS 2919.90.50 captures it as 'other' phosphoric ester with isopropyl alkyl groups. No impurities render it outside Chapter 29 scope.