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7789-66-4

Name SILICON TETRABROMIDE
CAS 7789-66-4
EINECS(EC#) 232-182-4
Molecular Formula Br4Si
MDL Number MFCD00049530
Molecular Weight 347.7
MOL File 7789-66-4.mol
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Chemical Properties

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

Hazard Codes  C
Risk Statements 
R34:Causes burns.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
RIDADR  UN 3264 8/PG 2
WGK Germany  3
F  10-23
TSCA  Yes
HazardClass  8
PackingGroup  II

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