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| | Sodium tetraphenylboron Basic information |
| | 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) |
| 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 | | F | 8 | | TSCA | Yes | | HazardClass | 6.1 | | PackingGroup | III | | HS Code | 29310095 | | Toxicity | LD50 orally in Rabbit: 288 mg/kg |
| | Sodium tetraphenylboron Usage And Synthesis |
| Chemical Properties | white powder | | 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 | Determination of potassium, ammonium, rubidium, and cesium. | | 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 |
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