Sodium Tetraphenylboron
Sodium tetraphenylboron is a chemically defined organo-inorganic compound featuring four phenyl groups attached to a boron atom, with sodium as the counterion, classified under HTS 2931.90.15.00 as an aromatic organo-inorganic compound. It is primarily used as a reagent in analytical chemistry for detecting potassium ions and as a precipitating agent in cation analysis.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified primarily by boron content rather than organo-inorganic structure
Inorganic borates and salts may fall under Chapter 28 if the organic phenyl groups are not considered principal characteristic.
If imported as a mixture with quaternary ammonium compounds for specific formulations
Certain organo-boron derivatives used in pharmaceutical intermediates could shift to heterocyclic compounds if ring structures dominate classification.
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Import Tips & Compliance
• Provide detailed chemical composition certificates and purity analysis to comply with HTS classification; ensure packaging meets UN standards for hazardous materials transport; verify REACH or TSCA registration for U.S. entry to avoid customs delays
Related Products under HTS 2931.90.15.00
Sodium Tetraphenylborate Analytical Grade
High-purity sodium tetraphenylborate (NaBPh4) in analytical grade, a white crystalline powder used for gravimetric determination of potassium in lab settings, falls under HTS 2931.90.15.00 due to its aromatic organo-inorganic nature with direct boron-carbon bonds. It meets Chapter 29 note (a) as a separate chemically defined compound.
NaB(C6H5)4 Precipitating Agent
NaB(C6H5)4, or sodium tetraphenylboron, serves as a selective precipitating agent for alkali metal ions in quantitative analysis, classified in HTS 2931.90.15.00 as an aromatic organo-inorganic compound per heading 2931. Its structure includes boron directly linked to four aromatic phenyl groups.
Tetraphenylboron Sodium Salt 99% Pure
99% pure tetraphenylboron sodium salt is a key organo-inorganic reagent for organic synthesis and ion-selective electrode preparation, fitting HTS 2931.90.15.00 as a chemically pure aromatic compound with B-C bonds to phenyl rings. It complies with Chapter 29's scope for separate organic compounds.
BPh4Na Ion Pairing Reagent
BPh4Na (sodium tetraphenylborate) acts as an ion-pairing reagent in ion chromatography and HPLC methods for cation separation, classified under HTS 2931.90.15.00 for its aromatic organo-inorganic structure. It qualifies under Chapter 29 note (a) as a pure compound with impurities not affecting classification.
Sodium Tetraphenylboron for Potassium Assay
Specialty sodium tetraphenylboron formulated for potassium assay kits in clinical and environmental labs, remains under HTS 2931.90.15.00 as the principal aromatic organo-inorganic compound. Its use as a precipitant aligns with chemically defined status in Chapter 29.