Dibutyl Phosphite
Dibutyl phosphite is a reactive intermediate for flame retardants and adhesives. Classified under HTS 2920.29.00.00 as a dialkyl phosphite ester.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If hydrolyzed to phosphonic acid
Inorganic acids of phosphorus classified under Chapter 28.
If metal phosphite salts
Organo-inorganic salts classified under heading 2931.
If used in synthetic dye manufacturing
Dye intermediates may fall under Chapter 32.
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Import Tips & Compliance
• P-H acidity documentation distinguishes from neutral phosphite triesters
• Corrosivity test data required for steel drum packaging approval
• Avoid water contamination; hydrolysis products may change classification
Related Products under HTS 2920.29.00.00
Trimethyl Phosphite
Trimethyl phosphite is a colorless liquid organophosphorus compound with the formula P(OCH3)3, classified under HTS 2920.29.00.00 as a phosphite ester. It is used as a reagent in organic synthesis and as an intermediate for pesticides and flame retardants.
Triethyl Phosphite
Triethyl phosphite (P(OCH2CH3)3) is an organophosphorus compound used in the synthesis of insecticides and as a ligand in metal catalysis. It qualifies under HTS 2920.29.00.00 as 'other' phosphite esters excluding halide esters.
Triphenyl Phosphite
Triphenyl phosphite is a white crystalline solid used as a stabilizer in PVC plastics and as an antioxidant. Classified under HTS 2920.29.00.00 as a phosphite ester and its derivatives.
Tris(2-ethylhexyl) Phosphite
Tris(2-ethylhexyl) phosphite is a viscous liquid phosphite ester used as a secondary plasticizer and heat stabilizer. Falls under HTS 2920.29.00.00 as an 'other' phosphite ester.
Diphenyl Decyl Phosphite
Diphenyl decyl phosphite serves as an antioxidant in lubricants and greases. This mixed phosphite ester is classified under HTS 2920.29.00.00.
Isodecyl Diphenyl Phosphite
Isodecyl diphenyl phosphite functions as a hydrolysis stabilizer in polyurethane formulations. Classified as a phosphite ester under HTS 2920.29.00.00.