Diethyl Phosphite 98% Technical Grade
Technical grade diethyl phosphite at 98% purity is used in industrial synthesis of herbicides like glyphosate intermediates. It falls under HTS 2920.22.00.00 as a phosphite ester meeting Chapter 29 requirements for chemically defined organic compounds.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-formulated as pesticide intermediate with active surfactants
Pesticide formulations shift to Chapter 38; pure intermediates stay in Chapter 29.
If ethyl group esterified with different phosphorus oxyacid
Other phosphate esters classified under 2909; phosphite P-H bond distinguishes 2920.
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Import Tips & Compliance
• Include GC-MS analysis certificate verifying 98% minimum purity to prevent classification as mixture
• Use UN-approved drums with phosphite-specific labeling; common pitfall is incorrect flash point declaration
• For quantities >1000kg, pre-notify CBP with REACH-equivalent documentation if from EU origins
Related Products under HTS 2920.22.00.00
Diethyl Phosphite
Diethyl phosphite is a colorless liquid organophosphorus compound with the formula (C2H5O)2P(O)H, classified under HTS 2920.22.00.00 as a phosphite ester of an inorganic acid of nonmetal (phosphorous acid). It serves as a key reagent in organic synthesis for producing phosphonate derivatives and flame retardants.
Stabilized Diethyl Phosphite with MEHQ Inhibitor
Diethyl phosphite stabilized with 100ppm monomethyl ether hydroquinone (MEHQ) prevents auto-oxidation during storage. Classified under HTS 2920.22.00.00 per Chapter 29 note 2(f) as phosphite ester with necessary preservative.
Diethyl Phosphite for Glyphosate Synthesis
High-purity diethyl phosphite specifically for manufacturing glyphosate herbicide via phosphonate reaction pathway. HTS 2920.22.00.00 classification as chemically defined phosphite ester used in agrochemical production.
Distilled Diethyl Phosphite 99.5% Purity
Vacuum-distilled diethyl phosphite achieving 99.5% purity for pharmaceutical phosphonate intermediate synthesis. Falls under HTS 2920.22.00.00 as high-purity phosphite ester per Chapter 29 chemical definition.
Diethyl Phosphite Flame Retardant Intermediate
Diethyl phosphite used to synthesize phosphorus-based flame retardants for textiles and plastics. Classified HTS 2920.22.00.00 as phosphite ester essential for organophosphorus polymer additives.
Bulk Diethyl Phosphite in ISO Tanks
Diethyl phosphite shipped in bulk ISO tanks for industrial chemical distribution, classified under HTS 2920.22.00.00 as qualifying transport packaging per Chapter 29 note 2(e).