| Identification | More | [Name]
Triphenylsilanol | [CAS]
791-31-1 | [Synonyms]
TRIPHENYLSILANOL
hydroxytriphenyl-silan
Silane, (hydroxytriphenyl)-
Silanol,triphenyl-
Triphenylhydroxysilane
triphenyl-silano
Triphenylsilylhydroxide
Triphenylsilanolwhitepowder
TriphenylsilSIT8722.0
Triphenylsilanol,98%
Triphenylsilanol,99% | [EINECS(EC#)]
212-339-3 | [Molecular Formula]
C18H16OSi | [MDL Number]
MFCD00002102 | [Molecular Weight]
276.4 | [MOL File]
791-31-1.mol |
| Chemical Properties | Back Directory | [Appearance]
White crystal | [Melting point ]
150-153 °C (lit.) | [Boiling point ]
389 °C [760mmHg] | [density ]
1.13 | [refractive index ]
1.628 | [Fp ]
>200°C | [storage temp. ]
Inert atmosphere,Room Temperature | [form ]
Powder | [pka]
13.39±0.58(Predicted) | [color ]
white | [Water Solubility ]
reacts | [Hydrolytic Sensitivity]
4: no reaction with water under neutral conditions | [Sensitive ]
Air Sensitive | [Detection Methods]
HPLC | [BRN ]
985007 | [InChIKey]
NLSXASIDNWDYMI-UHFFFAOYSA-N | [CAS DataBase Reference]
791-31-1(CAS DataBase Reference) | [NIST Chemistry Reference]
Silanol, triphenyl-(791-31-1) | [Storage Precautions]
Moisture sensitive | [EPA Substance Registry System]
791-31-1(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
1
| [RTECS ]
VV4325500
| [F ]
21 | [TSCA ]
Yes | [HS Code ]
29310095 |
| Hazard Information | Back Directory | [Chemical Properties]
White crystal | [Uses]
Triphenylsilanol is used as a water surrogate for regioselective Pd catalyzed allylations. A thick on germanium substrates have been produced by the electron bombardment of an evaporated thin film of triphenylsilanol. | [Definition]
ChEBI: An organosilanol in which silicon is bonded to a single hydroxy function and to three phenyl groups. | [Purification Methods]
It is purified by dissolving in pet ether, passing through an Al2O3 column, eluting thoroughly with CCl4 to remove impurities and then eluting the silanol with MeOH. Evaporation gives crystals with m 153-155o. It can be recrystallised from pet ether, CCl4 or from *benzene or Et2O/pet ether (1:1). It has also been recrystallised by partial freezing from the melt to constant melting point. [George & Gilman J Am Chem Soc 81 3288 1959, IR: Tatlock & Rochow J Org Chem 17 1555 1952 and Richards & Thompson J Chem Soc 124 1949, Beilstein 16 IV 1480.] |
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