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Sodium tetraphenylborate

CAS 143-66-8(C6H5)4BNaCatalysis & Inorganic

Sodium tetraphenylborate (CAS 143-66-8) is a versatile inorganic salt with the linear formula (C₆H₅)₄BNa and a molecular weight of 342.22 g/mol. It is widely recognised for its utility in analytical chemistry as a precipitating agent for potassium and ammonium ions. In organic synthesis, it serves as a crucial reagent for forming stable N-acylammonium salts and coupling with triflates to produce valuable arylalkenes and biaryls.

IUPAC
Tetraphenylboron sodium
Synonyms
Tetraphenylboron sodiumSodium tetraphenylboronBorate(1-), tetraphenyl-, sodium
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Sodium tetraphenylborate ((C6H5)4BNa) — chemical structure, CAS 143-66-8; Chemistry, fine chemical supplied by Tech Serve Solutions
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01 /Applications

Precipitating Agent

Sodium tetraphenylborate is an effective reagent for the gravimetric determination and separation of potassium and ammonium ions from aqueous solutions due to the formation of insoluble tetraphenylborate salts.

Organic Synthesis

It facilitates the generation of stable N-acylammonium salts through ion exchange and is used in coupling reactions with vinyl and aryl triflates to synthesise arylalkenes and biaryls.

Catalysis

As a boron-containing compound, it finds application in various catalytic processes, contributing to advancements in inorganic chemistry and chemical synthesis.

02 /Properties
Molecular weight342.22
Linear formula(C6H5)4BNa
Assay≥99.5%
GradeACS reagent
Loss on drying≤0.5% loss on drying
ApplicationGenerates stable, crystalline N-acylammonium salts by ion exchange.1 Couples with vinyl and aryl triflates to form arylalkenes and biaryls.2
03 /Safety & handling
GHS hazard pictogram: Toxic (GHS06)
Toxic
Danger

Hazard statements

  • H301Toxic if swallowed

Precautionary statements

  • P301IF SWALLOWED
Protective equipmentdust mask type N95 (US), Eyeshields, Faceshields, Gloves
Transport (UN / ADR)UN 2811 6.1 / PGIII
Water hazard class (WGK, DE)3
Hazard codes (EU)Xn
Risk statements (R)22

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry
CAS number
143-66-8
MDL number
MFCD00011494
PubChem substance
24900045
Beilstein registry
3599783
05 /Additional specifications
Clarity Of Solnpasses test
06 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

07 /Frequently asked questions

What is Sodium tetraphenylborate used for?

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Sodium tetraphenylborate is primarily used as a precipitating agent for potassium and ammonium ions in analytical chemistry and as a reagent in organic synthesis for forming N-acylammonium salts and in coupling reactions.

What is the CAS number and formula for Sodium tetraphenylborate?

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The CAS number for Sodium tetraphenylborate is 143-66-8, and its linear formula is (C₆H₅)₄BNa.

What grade and purity does Tech Serve Solutions supply?

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Tech Serve Solutions supplies Sodium tetraphenylborate in ACS reagent grade with an assay of ≥99.5% and a loss on drying of ≤0.5%.

How should Sodium tetraphenylborate be handled safely?

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Sodium tetraphenylborate is classified as Danger (GHS06) and is toxic if swallowed (H301). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, face shield, and gloves, must be worn. Handle in a well-ventilated area and follow precautionary statements P301 + P310.

Is Sodium tetraphenylborate a controlled substance?

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The provided data does not indicate that Sodium tetraphenylborate is a controlled substance.

How is Sodium tetraphenylborate packed and exported?

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Sodium tetraphenylborate is supplied according to ACS reagent specifications. For export and shipping, UN 2811 classification applies (6.1 / PGIII). Please contact us for specific packaging and shipping details for your region.

How can I request a sample or quote for Sodium tetraphenylborate?

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To request a sample or a quote for Sodium tetraphenylborate, please use the contact form on our website or reach out to our sales team directly.

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