Ethyl Methylphosphonite Preparation
Industrial preparation mainly consisting of ethyl methylphosphonite used in organophosphorus synthesis for agrochemicals and flame retardants. It matches HTS 3824.99.93.61 as the core chemical features phosphorus bonded to an ethyl group with no further carbon chain. This mixture form ensures stability for shipping and handling.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If prepared for foundry mold binders
Mixtures with specific industrial prep uses like foundry are classified earlier in 3824.
If for alcohol derivatives if ethyl component dominates classification
Ether-alcohols and derivatives may fall under Chapter 29 if not phosphorus-focused.
If containing listed pesticide substances like certain phosphonates
Pest control products with specific active ingredients shift to heading 3808 per subheading notes.
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Import Tips & Compliance
• Declare exact alkyl group (ethyl) in invoices and attach NMR spectra if requested for bonding verification
• Register under Chemical Facility Anti-Terrorism Standards (CFATS) if volume exceeds thresholds due to precursor potential
Related Products under HTS 3824.99.93.61
Dimethyl Methylphosphonate (DMMP)
DMMP is an organophosphorus compound used as a flame retardant additive and chemical intermediate in flameproof coatings and plastics. It falls under HTS 3824.99.93.61 because it consists mainly of chemicals containing a phosphorus atom bonded to one methyl group with no other carbon atoms directly attached beyond that. This specific mixture classification applies to its use in industrial chemical preparations.
Methylphosphonic Acid Mixture
A stabilized mixture primarily of methylphosphonic acid used in chemical synthesis and as a precursor for phosphonate-based water treatment agents. Classified under HTS 3824.99.93.61 due to its main component being phosphorus bonded solely to a methyl group without additional carbon attachments. This preparation is common in industrial chemical supply chains.
n-Propylphosphonic Acid Formulation
Formulation primarily of n-propylphosphonic acid for use in corrosion inhibitors and scale control in oilfield chemicals. Classified in HTS 3824.99.93.61 due to the defining phosphorus-n-propyl bond with no additional carbons. This prep is optimized for industrial fluid applications.
Methylphosphonyl Difluoride Mixture
Stabilized mixture of methylphosphonyl difluoride employed in advanced materials synthesis and as a fluorophosphorus reagent. Meets HTS 3824.99.93.61 criteria with phosphorus-methyl bonding exclusivity. Highly reactive, thus supplied in inert carrier.
Isopropylphosphonic Dichloride Solution
A diluted industrial solution mainly of isopropylphosphonic dichloride used in specialty polymer and herbicide production. Falls under HTS 3824.99.93.61 for mixtures where phosphorus is bonded only to an isopropyl group without extended carbon. The solution form aids safe transport.