Tetraphenylsilane
- CAS NO.：1048-08-4
- Empirical Formula: C24H20Si
- Molecular Weight: 336.5
- MDL number: MFCD00014069
- EINECS: 213-881-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:33:40
What is Tetraphenylsilane?
Chemical properties
White solid. Very stable and inert. Combustible.
The Uses of Tetraphenylsilane
Heat-transfer medium, polymers.
Preparation
Tetraphenylsilane (TPSi) can be obtained by reaction of phenylmagnesium bromide
with tetrachlorosilane or by reaction of phenyllithium with alkoxysilanes.
Purification Methods
It crystallises from *benzene as clear colorless bladed needles. It decomposes at ~360o/~760mm on attempted distillation. [George et al. J Am Chem Soc 77 6647 1955, Polis Chem Ber 98 1540 1885, Drew & Landuist J Chem Soc 1480 1935,s Beilstein 16 H 901, 16 I 525, 16 II 606, 16 III 1199, 16 IV 1372.]
References
[1] Furgal J, et al. Nucleophilic Attack of R-lithium at Tetrahedral Silicon in Alkoxysilanes. An Alternate Mechanism. Bulletin of the Chemical Society of Japan, 2016.
Properties of Tetraphenylsilane
| Melting point: | 236 °C |
| Boiling point: | 228 °C |
| Density | 1.078 |
| Flash point: | 193°C |
| form | solid |
| color | White to Almost white |
| Specific Gravity | 1.078 |
| Water Solubility | Insoluble in water. |
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
| BRN | 1885911 |
| CAS DataBase Reference | 1048-08-4(CAS DataBase Reference) |
| EPA Substance Registry System | Silane, tetraphenyl- (1048-08-4) |
Safety information for Tetraphenylsilane
Computed Descriptors for Tetraphenylsilane
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