72020

Natrium-tetraphenylborat

puriss. p.a., ACS reagent, ≥99.5% (NT)

• Synonym(e): Tetraphenylbornatrium
• Lineare Formel: (C₆H₅)₄BNa
• CAS-Nummer: 143-66-8
• Molekulargewicht: 342.22
• Beilstein: 3599783
• EG-Nummer: 205-605-5
• MDL-Nummer: MFCD00011494
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 57652389
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent; puriss. p.a.
• Qualitätsniveau: 200
• Assay: ≥99.5% (NT)
• Form: solid
• Verlust: ≤0.5% loss on drying, 110 °C
• Anionenspuren: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• Kationenspuren: Ca: ≤100 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤500 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES String: [Na+].c1ccc(cc1)[B-](c2ccccc2)(c3ccccc3)c4ccccc4
• InChI: 1S/C24H20B.Na/c1-5-13-21(14-6-1)25(22-15-7-2-8-16-22,23-17-9-3-10-18-23)24-19-11-4-12-20-24;/h1-20H;/q-1;+1
• InChIKey: HFSRCEJMTLMDLI-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Sodium tetraphenylborate (Ph₄BNa) undergoes rhodium-catalyzed addition reactions with N-phenylsulfonyl aldimines to afford R(Ph)CHNHSO₂Ph.

Anwendung

Sodium tetraphenylborate (Ph₄BNa) may be used in the synthesis of polyfunctional biaryls via modified Suzuki cross-coupling reaction. It may be employed as a derivatization reagent for the analysis of methylmercury and ethylmercury by gas chromatography (GC) coupled with atomic fluorescence spectrometry (AFS), microwave-induced plasma atomic emission spectrometry (AES) and mass spectrometry (MS).

Sonstige Hinweise

Reagent for the precipitation and titration of potassium; For the amperometric titration of amines, quaternary ammonium compounds and potassium; For the titration of quaternary ammonium surfactants; Titrant for amines and NH₄Cl in the presence of a K selective electrode

Sicherheitshinweise

• Piktogramme: GHS06
• Signalwort: Danger
• H-Sätze: H301
• P-Sätze: P264 - P270 - P301 + P310 - P405 - P501
• Gefahreneinstufungen: Acute Tox. 3 Oral
• Lagerklassenschlüssel: 6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Faceshields, Gloves