SILICON TETRABROMIDE
Synonym(s):Tetrabromosilane
- CAS NO.：7789-66-4
- Empirical Formula: Br4Si
- Molecular Weight: 347.7
- MDL number: MFCD00049530
- EINECS: 232-182-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:41
What is SILICON TETRABROMIDE?
Chemical properties
Fuming, colorless liquid that turns yel- low in air; disagreeable odor. Decomposed by water with evolution of heat. Noncombustible.
The Uses of SILICON TETRABROMIDE
Silicon tetrabromide (SiBr4) may be used to prepare photoluminescent silicon nanocrystals by chemical reduction with alkaline metals.
Hazard
Strong irritant to tissue.
Properties of SILICON TETRABROMIDE
| Melting point: | 5 °C (lit.) |
| Boiling point: | 153 °C (lit.) |
| Density | 2.8 g/mL at 25 °C (lit.) |
| vapor density | 2.8 (vs air) |
| refractive index | 1.5627 |
| Flash point: | 154°C |
| solubility | reacts with H2O |
| form | Liquid |
| color | Colorless to pale yellow |
| Specific Gravity | 2.772 |
| Water Solubility | decomposed in water to HBr, silicic acid, with evolution of heat [MER06] |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
| Merck | 14,8499 |
| CAS DataBase Reference | 7789-66-4(CAS DataBase Reference) |
| EPA Substance Registry System | Tetrabromosilane (7789-66-4) |
Safety information for SILICON TETRABROMIDE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P310:Immediately call a POISON CENTER or doctor/physician. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for SILICON TETRABROMIDE
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