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Натрия тетрафенилбора
- английское имяSodium tetraphenylboron
- CAS №143-66-8
- CBNumberCB5393075
- ФормулаC24H20BNa
- мольный вес342.22
- EINECS205-605-5
- номер MDLMFCD00011494
- файл Mol143-66-8.mol
химическое свойство
Температура плавления | 300 °C |
температура хранения | 2-8°C |
растворимость | relatively well soluble in water. A 0.1 M aqueous solution is generally used as reagent. |
форма | Solid |
цвет | White |
РН | 8 (50g/l, H2O, 20℃) |
Растворимость в воде | SOLUBLE |
Чувствительный | Light Sensitive |
Мерк | 14,8690 |
БРН | 3599783 |
Стабильность | Stable. Incompatible with strong acids, strong oxidizing agents. Light sensitive. |
Справочник по базе данных CAS | 143-66-8(CAS DataBase Reference) |
FDA UNII | 5A96KL5H1M |
Система регистрации веществ EPA | Borate(1-), tetraphenyl-, sodium (143-66-8) |
Коды опасности | Xn,Xi | |||||||||
Заявления о рисках | 22-36/37/38 | |||||||||
Заявления о безопасности | 26-36/37-36-24/25 | |||||||||
РИДАДР | UN 2811 6.1/PG 3 | |||||||||
WGK Германия | 3 | |||||||||
RTECS | ED3362500 | |||||||||
F | 8 | |||||||||
TSCA | Yes | |||||||||
Класс опасности | 6.1 | |||||||||
Группа упаковки | III | |||||||||
кода HS | 29310095 | |||||||||
Токсичность | LD50 orally in Rabbit: 288 mg/kg | |||||||||
NFPA 704: |
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рисовальное письмо(GHS)
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рисовальное письмо(GHS)
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сигнальный язык
опасность
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вредная бумага
H301:Токсично при проглатывании.
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оператор предупредительных мер
P301+P310:ПРИ ПРОГЛАТЫВАНИИ: Немедленно обратиться за медицинской помощью. Прополоскать рот.
Натрия тетрафенилбора химические свойства, назначение, производство
Химические свойства
white powderИспользование
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.Общее описание
Sodium tetraphenylborate (Ph4BNa) undergoes rhodium-catalyzed addition reactions with N-phenylsulfonyl aldimines to afford R(Ph)CHNHSO2Ph.Методы очистки
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.]Натрия тетрафенилбора запасные части и сырье
Натрия тетрафенилбора поставщик
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