SILICON TETRABROMIDE Chemical Properties

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

Specific Gravity

2.772

color 

Colorless to pale yellow

Water Solubility 

decomposed in water to HBr, silicic acid, with evolution of heat [MER06]

Hydrolytic Sensitivity

8: reacts rapidly with moisture, water, protic solvents

Sensitive 

Moisture Sensitive

Merck 

14,8499

CAS DataBase Reference

7789-66-4(CAS DataBase Reference)

EPA Substance Registry System

Tetrabromosilane (7789-66-4)

Safety Information

Hazard Codes 

C

Risk Statements 

34

Safety Statements 

26-27-28-36/37/39

RIDADR 

UN 3264 8/PG 2

WGK Germany 

3

F 

10-23

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

SILICON TETRABROMIDE Usage And Synthesis

Chemical Properties

Fuming, colorless liquid that turns yel- low in air; disagreeable odor. Decomposed by water with evolution of heat. Noncombustible.

Uses

Silicon tetrabromide (SiBr₄) may be used to prepare photoluminescent silicon nanocrystals by chemical reduction with alkaline metals.

Hazard

Strong irritant to tissue.

SILICON TETRABROMIDE(7789-66-4)Related Product Information

• POTASSIUM TETRABROMOAURATE(III)
• Hydrogen fluoride
• SILICON DISULFIDE
• 1,2-Dibromoethane
• MAGNESIUM BROMIDE DIETHYL ETHERATE
• Cobalt chloride
• Ferrous chloride
• Magnesium oxide
• Silicon monoxide
• Magnesium fluoride
• Magnesium chloride
• Barium iodide
• Silicon carbide
• SILVER BROMIDE
• Iodine pentafluoride
• SILICON (IV) IODIDE
• Tetrachlorosilane
• SILICON TETRAACETATE