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Sodium tetraphenylboron

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Sodium tetraphenylboron Basic information

Product Name:
Sodium tetraphenylboron
Synonyms:
  • Borate(1-),tetraphenyl-,sodium
  • kariporuk
  • sodiumtetraphenylborate(1-)
  • sodiumtetraphenylborate(naph4b)
  • sodiumtetraphenylboride
  • sodiumtetraphenylboride(1-)
  • tetraphenyl-borate(1-sodium
  • tetraphenyl-borate(1-sodiumsalt
CAS:
143-66-8
MF:
C24H20BNa
MW:
342.22
EINECS:
205-605-5
Product Categories:
  • Organometallics
  • Analytical Chemistry
  • B (Classes of Boron Compounds)
  • Classes of Metal Compounds
  • Ion Association
  • Tetraphenylborates
  • Boron compounds
  • Na (Sodium) Compounds (excluding simple sodium salts)
  • Typical Metal Compounds
  • organic or inorganic borate
  • fine chemicals
Mol File:
143-66-8.mol
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Sodium tetraphenylboron Chemical Properties

Melting point:
300 °C
storage temp. 
2-8°C
solubility 
relatively well soluble in water. A 0.1 M aqueous solution is generally used as reagent.
form 
Solid
color 
White
PH
8 (50g/l, H2O, 20℃)
Water Solubility 
SOLUBLE
Sensitive 
Light Sensitive
Merck 
14,8690
BRN 
3599783
Stability:
Stable. Incompatible with strong acids, strong oxidizing agents. Light sensitive.
CAS DataBase Reference
143-66-8(CAS DataBase Reference)
EPA Substance Registry System
Borate(1-), tetraphenyl-, sodium (143-66-8)
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Safety Information

Hazard Codes 
Xn,Xi
Risk Statements 
22-36/37/38
Safety Statements 
26-36/37-36-24/25
RIDADR 
UN 2811 6.1/PG 3
WGK Germany 
3
RTECS 
ED3362500
8
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29310095
Toxicity
LD50 orally in Rabbit: 288 mg/kg

MSDS

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Sodium tetraphenylboron Usage And Synthesis

Chemical Properties

white powder

Uses

Determination of potassium, ammonium, rubidium, and cesium.

Uses

Sodium Tetraphenylboroate is a salt that is commonly used in inorganic and organometallic chemistry as a precipitating agent. Sodium Tetraphenylboroate is also utilized for the preparation of N-acylam monium salts and in coordination chemistry due to their favourable solubility in nonpolar sovlents and their crystallinity.

Uses

As reagent for determination of potassium, ammonium, rubidium and cesium ions: Barnard, Buechl, Chemist-Analyst 48, 44, 49 (1959); Montequi, Serrano, An. R. Acad. Farm. 26, 107 (1960).

General Description

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

Purification Methods

Dissolve the borate in dry MeOH and add dry Et2O. Collect the solid and dry it in a vacuum at 80o/2mm for 4hours. It can also be extracted (Soxhlet) using CHCl3, and it crystallises from CHCl3 as snow-white needles. It is freely soluble in H2O, Me2CO but insoluble in pet ether and Et2O. An aqueous solution has pH  5 and can be stored for days at 25 or lower, and for 5 days at 45o without deterioration. Its solubility in polar solvents increases with decrease in temperature [Wittig & Raff Justus Liebigs Ann Chem 573 204 1950]. The salt can also be recrystallised from acetone/hexane or CHCl3, or from Et2O/cyclohexane (3:2) by warming the solution to precipitate the compound. Dry it in a vacuum at 80o. It dissolves in Me2CO at 50-60o to give a clear solution. After standing at this temperature for 10minutes the mixture is filtered rapidly through a pre-heated Büchner funnel, cooled and the crystals are collected and dried in a vacuum desiccator at room temperature for 3days [Abraham et al. J Chem Soc, Faraday Trans 1 80 489 1984]. If the product gives a turbid aqueous solution, the turbidity can be removed by treating with freshly prepared alumina gel and filtering. [Beilstein 16 IV 1624.]

Sodium tetraphenylboron Preparation Products And Raw materials

Raw materials

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