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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified by carboxylic acid function
If phosphonic acid aspect secondary to polycarboxylic function.
If deemed 'other wastes' from chemical industries
Per Chapter 38 note, unfit process wastes go to 3825.
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Import Tips & Compliance
• Certify compliance with Clean Water Act if for oilfield use; include end-use statements
• Test for heavy metals as impurities, as exceeding limits triggers waste classification
• Use ISPP codes precisely to avoid bundling with general phosphonates
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.
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.
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.
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.