Name | Tetraphenylboron sodium |
Synonyms | kariporuk tetraphenylborate(1-) sodiumtetraphenylboride Tetraphenylboron sodium Sodium tetraphenylboron Sodium tetraphenylborate sodiumtetraphenylboride(1-) sodiumtetraphenylborate(1-) tetraphenyl-borate(1-sodium sodium tetraphenylborate(1-) Borate(1-),tetraphenyl-,sodium tetraphenyl-borate(1-sodiumsalt sodiumtetraphenylborate(naph4b) cyclohex-1-yliumyl(triphenyl)borate(1-) |
CAS | 143-66-8 |
EINECS | 205-605-5 |
InChI | 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 |
Molecular Formula | C24H20BNa |
Molar Mass | 342.22 |
Melting Point | 300 °C |
Water Solubility | SOLUBLE |
Solubility | relatively well soluble in water.A 0.1 M aqueous solution is generally used as reagent. |
Appearance | Crystallization |
Color | White |
Merck | 14,8690 |
BRN | 3599783 |
PH | 8 (50g/l, H2O, 20℃) |
Storage Condition | 2-8°C |
Stability | Stable. Incompatible with strong acids, strong oxidizing agents. Light sensitive. |
Sensitive | Light Sensitive |
MDL | MFCD00011494 |
Physical and Chemical Properties | Melting point 300°C water-soluble soluble |
Use | For the determination of potassium, sodium and several nitrogen-containing organic compounds |
Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
UN IDs | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
RTECS | ED3362500 |
FLUKA BRAND F CODES | 8 |
TSCA | Yes |
HS Code | 29310095 |
Hazard Class | 6.1 |
Packing Group | III |
Toxicity | LD50 orally in Rabbit: 288 mg/kg |
Raw Materials | Orthoboric acid 1-Butanol |
colorless or white crystals. Slightly hygroscopic. Soluble in water, acetone, acetonitrile, dimethylformamide, the lower the temperature, the greater the solubility. Insoluble in benzene, carbon tetrachloride. With potassium, rubidium, cesium, silver, mercury salt precipitation. With the formation of organic base insoluble precipitation. It is easy to decompose in aqueous solution and is generally stable at pH 8-9 or 5-6.
A phenylmagnesium bromide solution was prepared by dissolving metallic magnesium and bromobenzene in anhydrous diethyl ether. Sodium tetrafluoroborate was added to form a solution with diethyl ether. The reaction mixture was placed on a water bath under vacuum and boiled. Add activated carbon decolorization, filtration, adding sodium chloride, precipitation of Sodium tetraphenylborate.
Analytical reagents for the determination of potassium, ammonium, rubidium, cesium, Mercury, thallium and organic compounds containing ammonia.
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | polycondensation catalyst for carbonate by transesterification. It is also used for the determination of potassium, sodium and chlorinated organic compounds, such as the analysis of potassium in blade fertilizer and blood. Determination of potassium by gravimetric method and titration method. Associative precipitation of large cations such as alkaloids and quaternary ammonium salts. Blood potassium is measured. Determination of potassium, rubidium, cesium, mercury, thallium and organic alkali (forming alkali). Used for amines, quaternary ammonium compounds and potassium current titration; in the presence of potassium selective electrodes, used as titrants for amines and NH4Cl; K, Pb, Cs, NH4 and alkaloid precipitation reagents; obtained by ion exchange Stable, crystalline N-amide salt; coupled with vinyl trifluoromethanesulfonate or aryl ester to form aryl olefins and biaryl compounds; precipitation of silver, cesium, copper (I), potassium, ammonium, rubidium, thallium (I); for the gravimetric and titration determination of potassium; for blood potassium measurement for potassium, sodium and several nitrogen-containing organic compounds Determination of compounds |
production method | Grignard reagent is first synthesized with magnesium chips, benzene bromide, ether solution and iodine tablets, and its content is generally about 39%-43%. Then, the Grignard reagent is reacted with trimethyl borate, hydrolyzed, ether extracted, and filtered. The filtrate is extracted with chloroform, salt is added to the extract, and white precipitate (crude sodium tetraphenylboron) is obtained by salting out. Then extract with acetone, filter out the salt, the filtrate is concentrated under reduced pressure at room temperature, crystallized, recrystallized with acetone, and dried at 30-40 ℃ to obtain the finished product. |