Other
Phosphoric esters and their salts, including lactophosphates; their halogenated, sulfonated, nitrated or nitrosated derivatives: > Other: > Other > Other
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2919.90.50.50
Tricresyl Phosphate (TCP)
Tricresyl phosphate is a triaryl phosphate ester used primarily as a plasticizer and flame retardant in plastics, lubricants, and vinyl applications. It falls under HTS 2919.90.50.50 as a phosphoric ester (phosphate ester) that is not specifically enumerated elsewhere in heading 2919. This classification applies to its chemical structure as an organophosphate ester without halogenated, sulfonated, nitrated, or nitrosated derivatives.
Triphenyl Phosphate (TPP)
Triphenyl phosphate serves as a flame retardant and plasticizer in rigid PVC, cellulose acetate, and synthetic resins. Classified under HTS 2919.90.50.50 as an 'other' phosphoric ester, it matches the chapter's scope for separate chemically defined organic phosphate compounds. Its aryl phosphate structure distinguishes it from alkyl phosphates listed elsewhere.
Cresyl Diphenyl Phosphate
Cresyl diphenyl phosphate is an organophosphate ester employed as a hydraulic fluid base and flame retardant in aviation lubricants. It qualifies for HTS 2919.90.50.50 as a non-specific phosphoric ester and salt under the chapter notes for chemically defined organic compounds. The mixed aryl structure places it in the 'other' category.
Isodecyl Diphenyl Phosphate (IDPP)
Isodecyl diphenyl phosphate functions as a low-volatility plasticizer and flame retardant for flexible PVC and coatings. This alkyl-aryl phosphoric ester is captured by HTS 2919.90.50.50 as an 'other' phosphoric ester per Chapter 29 note (a) for separate organic compounds. It lacks specific provisions elsewhere in the heading.
Triethyl Phosphate (TEP)
Triethyl phosphate acts as a catalyst, solvent, and flame retardant in resins and plastics manufacturing. As a low molecular weight phosphoric ester, it falls under HTS 2919.90.50.50 per chapter provisions for separate organic phosphate compounds. Widely used in pharmaceutical synthesis intermediates.
Diphenyl 2-Ethylhexyl Phosphate
This mixed alkyl-aryl phosphate ester serves as a plasticizer for nitrocellulose lacquers and flame retardant. HTS 2919.90.50.50 covers it as an unspecified phosphoric ester under Chapter 29 organic compounds scope. The ester linkage defines its principal chemical character.
Tris(2-chloroethyl) Phosphate (TCEP)
TCEP is a chlorinated phosphate ester used as flame retardant in polyurethane foam and textiles. Despite halogenation, as an 'other' derivative it falls under HTS 2919.90.50.50 per chapter notes including halogenated phosphoric esters. Provides reactive flame retardancy.
Calcium Bis(monoisopropyl phosphate)
This metal salt of a phosphoric ester functions as a lubricant additive and stabilizer. Classified under HTS 2919.90.50.50 per note 5(C)(1) for inorganic salts of organic phosphate compounds following the organic component's heading. Chapter notes specify salt classification follows acid-function compound.
2-Ethylhexyl Phosphate
Mono- or di-(2-ethylhexyl) phosphoric esters used in metal extraction and solvent applications. As phosphoric esters without specific enumeration, HTS 2919.90.50.50 applies per chapter scope for organic compounds. Common in hydrometallurgy.
Triisopropyl Phosphate
Triisopropyl phosphate serves as a catalyst carrier and extraction solvent in pharmaceutical processes. This trialkyl phosphoric ester fits HTS 2919.90.50.50 as an 'other' ester per Chapter 29 definitions. Low toxicity profile.
Butyl Acrylate Phosphate Ester
Reactive phosphate ester monomer for UV-curable coatings and adhesives. As a phosphoric ester with polymerizable functionality, classified HTS 2919.90.50.50. Chapter notes confirm esters classified by latest occurring function.
Ethylene Glycol Phosphate
Phosphoric ester of ethylene glycol used in polyester synthesis and flame retardants. HTS 2919.90.50.50 covers this polyol phosphate ester as unspecified phosphoric derivative. Reactive hydroxyl functionality.
Zinc Dialkyldithiophosphate (ZDDP)
ZDDP is a metal salt of phosphorodithioic acid used as extreme pressure lubricant additive. Though organo-sulfur, classified as phosphoric ester salt under HTS 2919.90.50.50 per note 5(C)(1). Essential in engine oils.
Magnesium Phosphate Ester
Magnesium salts of mixed alkyl phosphate esters used as fuel additives and corrosion inhibitors. HTS 2919.90.50.50 per classification notes for organic compound salts. Aviation fuel applications.
Tributyl Phosphate (TBP)
Tributyl phosphate is a trialkyl phosphate ester used in nuclear fuel processing, solvent extraction, and defoamers. It is classified under HTS 2919.90.50.50 as an 'other' phosphoric ester, fitting Chapter 29's definition of chemically defined organic compounds without impurities affecting classification. Common in industrial extraction processes.